Fourth Amendment to Purchase and Sale Agreement and Joint Escrow Instructions between Ascend Athol RE LLC and IIP Operating Partnership, dated March 13, 2020

THIS FOURTH AMENDMENT TO PURCHASE AND SALE AGREEMENT AND JOINT ESCROW INSTRUCTIONS (this "Amendment") is entered into effective as of the 13th day of March 2020, by and between ASCEND ATHOL RE LLC, a Massachusetts limited liability company ("Seller"), and IIP OPERATING PARTNERSHIP, LP, a Delaware limited partnership ("Buyer").

A.WHEREAS, Seller and Buyer are parties to that certain Purchase and Sale Agreement and Joint Escrow Instructions dated as of January 13, 2020, as amended by that certain First Amendment to Purchase and Sale Agreement and Joint Escrow Instructions dated as of February 7, 2020, as amended by that certain Second Amendment to Purchase and Sale Agreement and Joint Escrow Instructions dated as of February 28, 2020, and as amended by that certain Third Amendment to Purchase and Sale Agreement and Joint Escrow Instructions dated as of March 6, 2020 (collectively, the "Existing PSA"), where Seller has agreed to sell to Buyer, and Buyer has agreed to purchase from Seller, Seller's right, title and interest in certain real property located in Athol, Massachusetts, as more particularly described therein; and

B.WHEREAS, in accordance with Section 15.4 of the Existing PSA, Seller and Buyer desire to modify and amend the Existing PSA only in respects and on the conditions hereinafter stated.

NOW, THEREFORE, Seller and Buyer, in consideration of the mutual promises contained herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, and intending to be legally bound, agree as follows:

1.Definitions. For purposes of this Amendment, capitalized terms shall have the meanings ascribed to them in the Existing PSA unless otherwise defined herein. The Existing PSA, as amended by this Amendment, is referred to collectively herein as the "Agreement." From and after the date hereof, the term "Agreement," as used in the Existing PSA, shall mean the Existing PSA, as amended by this Amendment.

2.Investigation Period. The first sentence of Section 4.1 of the Existing PSA is hereby amended and restated in its entirety to read as follows:

3.Effect of Amendment. Except as modified by this Amendment, the Existing PSA and all the covenants, agreements, terms, provisions and conditions thereof shall remain in full force and effect and are hereby ratified and affirmed. In the event of any conflict between the terms contained in this Amendment and the Existing PSA, the terms herein contained shall supersede and control the obligations and liabilities of the parties.

4.Miscellaneous. This Amendment becomes effective only upon execution and delivery hereof by Seller and Buyer. The captions of the paragraphs and subparagraphs in this Amendment are inserted and included solely for convenience and shall not be considered or given any effect in construing the provisions hereof.

5.Authority. Each of Seller and Buyer guarantees, warrants and represents that the individual or individuals signing this Amendment have the power, authority and legal capacity to sign this Amendment on behalf of and to bind all entities, corporations, partnerships, limited liability companies or other organizations on whose behalf such individual or individuals have signed.

6.Counterparts; Facsimile and PDF Signatures. This Amendment may be executed in one or more counterparts, each of which, when taken together, shall constitute one and the same document. A facsimile or portable document format (PDF) signature on this Amendment shall be equivalent to, and have the same force and effect as, an original signature.