Exhibit 5.1

[KURZMAN EISENBERG CORBIN & LEVER, LLP LETTERHEAD]

ksteiner@kelaw.com

(914) 993-6054

July 26, 2019

Sachem Capital Corp.

698 Main Street

Branford, Connecticut 06405

Re: Common Shares, par value $.001 per share

Ladies and Gentlemen:

We have acted as counsel to Sachem Capital Corp., a New York corporation (the “Company”), in connection with the underwritten public offering of up to 2,300,000 common shares, par value $0.001 per share (the “Common Shares”) offered and sold by the Company pursuant to a prospectus supplement, dated July 24, 2019 (the “Prospectus Supplement”), and a base prospectus, dated November 9, 2018 (the “Base Prospectus” and, together with the Prospectus Supplement, the “Prospectus”), which are part of a “shelf” registration statement on Form S-3, SEC File No. 333-227906 (the “Registration Statement”) filed by the Company with the Securities and Exchange Commission (the “Commission”) pursuant to the Securities Act of 1933, as amended (the “Securities Act”), which was declared effective by the Commission on November 9, 2018, registering for sale by the Company of up to $100 million of its securities, including common shares, par value $0.001 per share, preferred shares, par value $0.001 per share, debt securities, warrants and units.

This opinion is being furnished in accordance with the requirements of Item 601(b)(5) of Regulation S-K under the Securities Act.

With respect to the opinion set forth below, we have examined originals, certified copies, or copies otherwise identified to our satisfaction as being true copies, of the following (the “Documents”):

Sachem Capital Corp.

July 26, 2019

Page 2

In rendering the opinion set forth below, we have assumed the genuineness of all signatures, the legal capacity of natural persons, the authenticity of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as duplicates or certified or conformed copies and the authenticity of originals or such documents and that each of the parties (other than the Company) executing any of the Documents has duly and validly executed and delivered each of the Documents to which such party is a signatory, and the obligations of each party set forth therein are legal, valid and binding and are enforceable in accordance with all stated terms. As to various questions of fact material to this opinion, we have relied, to the extent we deemed reasonably appropriate, upon representations of officers or directors of the Company and upon such certificates, records, instruments and other documents furnished to us by the Company, without independently checking or verifying the accuracy of such certificates, documents, records, instruments and other documents.

Based solely upon and subject to the foregoing, and subject to the assumptions, limitations and qualifications stated herein, we are of the opinion that the Common Shares have been duly authorized and when issued and delivered to and paid for by the Underwriters in accordance with the terms of the Underwriting Agreement, will be validly issued, fully paid and nonassessable.

This opinion letter is limited to the matters stated herein and no opinions may be implied or inferred beyond the matters expressly stated herein. We do not express any opinion herein concerning any law other than the laws of the State of New York and the federal laws of the United States. Further, our opinion is based solely upon existing laws, rules and regulations and we undertake no obligation to advise you of any changes that may be brought to our attention after the date hereof.

The opinion set forth above is subject to (i) the effects of bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium, and other similar laws now or hereafter in effect relating to or affecting creditors’ rights generally; (ii) the effects of general equitable principles, including, without limitation, concepts of materiality, reasonableness, good faith and fair dealing, and the possible unavailability of specific performance or injunctive relief, whether enforcement is considered in a proceeding in equity or law; (iii) the discretion of the court before which any proceeding for enforcement may be brought; and (iv) the unenforceability under certain circumstances under law or court decisions of provisions providing for the indemnification of or contribution to a party with respect to a liability where such indemnification or contribution is contrary to public policy.

Sachem Capital Corp.

July 26, 2019

Page 3

We consent to the filing of this opinion as an exhibit to the Current Report on Form 8-K relating to the entry into the Underwriting Agreement to be filed by the Company in connection with the offering and sale of the Common Shares, which Current Report is incorporated by reference into the Registration Statement, and to the reference to this firm under the caption “Legal Matters” in the Prospectus Supplement constituting a part of the Registration Statement. In giving this consent, we do not admit that we are experts, or within the category of persons whose consent is required under Section 7 of the Securities Act.