Statement of Changes in Beneficial Ownership (4)

Share Name	Share Symbol	Market	Type
Federal Agricultural Mortgage Corporation	NYSE:AGM	NYSE	Common Stock

	Price Change	% Change	Share Price	High Price	Low Price	Open Price	Shares Traded	Last Trade
	1.94	1.03%	191.03	192.76	187.80	190.10	32,279	22:30:00

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

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