POWER OF ATTORNEY
Know all by these presents, that the undersigned hereby
constitutes and appoints the Vice President of Regulatory Affairs
and Counsel and Chief Financial Officer of Larimar Therapeutics, Inc.
(the "Company") with full power to act singly, as the undersigned's true
and lawful attorneys-in-fact, with full power of substitution, to:
(1) execute for and on behalf of the undersigned, in the
undersigned's capacity as an officer and/or director and/or beneficial owner
of the Company, Forms 3, 4, and 5 in accordance with Section 16(a) of the
Securities Exchange Act of 1934, as amended, and the rules thereunder;
(2) do and perform any and all acts for and on behalf of the undersigned
which may be necessary or desirable to complete and execute any such Form 3, 4,
or 5, complete and execute any amendment or amendments thereto, and timely file
such form with the SEC and any stock exchange or similar authority; and
(3) take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney in fact on behalf of
the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorney-in-fact may approve
in such attorney-in-fact's discretion.
The undersigned hereby grants to the attorneys-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might
or could do if personally present with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact or such attorney-in-
fact's substitute or substitutes, shall lawfully do or cause to be done by virtue
of this power of attorney and the rights and powers herein granted.
This power of attorney shall remain in full force and effect until revoked
by the undersigned in a signed writing delivered to the attorney-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 28th day of May, 2020.
/s/Jonathan Leff
Jonathan Leff
