Form 3 - Initial statement of beneficial ownership of securities

LIMITED POWER OF ATTORNEY FOR SECTION 13 AND SECTION 16 REPORTING KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned hereby makes, constitutes and appoints Jerry Plush, Sharymar Calderon, S. Marshall Martin, Julio V. Pena, and Patricia Argibay of Amerant Bancorp Inc. (the “Company”), as the undersigned’s true and lawful attorney-in-fact (the “Attorney-in-Fact”), with full power of substitution and resubstitution, each with the power to act alone for the undersigned and in the undersigned’s name, place and stead, in any and all capacities to: 1. Prepare, execute and submit to the Securities and Exchange Commission (“SEC”), any national securities exchange or securities quotation system and the Company any and all reports (including any amendment thereto) of the undersigned required or considered advisable under Section 13 or Section 16 of the Securities Exchange Act of 1934 (the “Exchange Act”) and the rules and regulations thereunder, with respect to the equity securities of the Company, including Forms 3, 4 and 5 and Schedule 13D or 13G; and 2. Obtain, as the undersigned’s representative and on the undersigned’s behalf, information regarding transactions in the Company’s equity securities from any third party, including the Company and any brokers, dealers, employee benefit plan administrators and trustees, and the undersigned hereby authorizes any such third party to release any such information to the Attorney-in-Fact. The undersigned acknowledges that: (a) This Limited Power of Attorney authorizes, but does not require, the Attorney-in-Fact to act at his or her discretion on information provided to such Attorney-in-Fact without independent verification of such information; (b) Any documents prepared or executed by the Attorney-in-Fact on behalf of the undersigned pursuant to this Limited Power of Attorney will be in such form and will contain such information as the Attorney-in-Fact, in his or her discretion, deems necessary or desirable; (c) Neither the Company nor the Attorney-in-Fact assumes any liability for the undersigned’s responsibility to comply with the requirements of Section 13 or Section 16 of the Exchange Act, any liability of the undersigned for any failure to comply with such requirements, or any liability of the undersigned for disgorgement of profits under Section 16(b) of the Exchange Act; and (d) This Limited Power of Attorney does not relieve the undersigned from responsibility for compliance with the undersigned’s obligations under Section 13 or Section 16 of the Exchange Act, including, without limitation, the reporting requirements under Section 13 or Section 16 of the Exchange Act. The undersigned hereby grants to the Attorney-in-Fact full power and authority to do and perform each and every act and thing requisite, necessary or convenient to be done in connection with the foregoing, as fully, to all intents and purposes, as the undersigned might or could do in person, hereby ratifying and confirming all that the Attorney-in- Fact, or his or her substitute or substitutes, shall lawfully do or cause to be done by authority of this Limited Power of Attorney. This Limited Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 4 or 5 or Schedule 13D or 13G with respect to the undersigned’s holdings of and transactions in equity securities of the Company, unless earlier revoked by the undersigned in a signed writing delivered to the Attorney-in- Fact. This Limited Power of Attorney revokes all previous powers of attorney with respect to the subject matter of this Limited Power of Attorney. IN WITNESS WHEREOF, the undersigned has executed this Limited Power of Attorney as of October 9, 2024. /s/ Thiel Fischer (Signature) Name: Thiel Fischer Title: EVP and Chief Credit Officer

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