HERE THE “BORROWER” SIGNED THE MORTGAGE AGREEMENT AND THEN CONVEYED A TWO-THIRDS INTEREST IN THE PROPERTY TO TWO “OWNERS” WHO DID NOT SIGN THE MORTGAGE AGREEMENT; THE BANK SOUGHT TO RECOVER THE COSTS OF MAINTAINING THE ALLEGEDLY ABANDONED PROPERTY UNDER “QUASI CONTRACT” THEORIES; THE QUASI-CONTRACT CAUSES OF ACTION WERE DISMISSED BECAUSE THE MORTGAGE AGREEMENT WAS DEEMED TO COVER THE “BORROWER” AND THE NONSIGNATORY “OWNERS” (SECOND DEPT).

The Second Department, reversing Supreme Court, in a full-fledged opinion by Justice Landicino, determined the bank’s (mortgagee’s) counterclaims for unjust enrichment, quantum meruit, an equitable lien and an equitable mortgage should have been dismissed. The bank was seeking reimbursement for costs associated with maintaining the mortgaged property which had allegedly been abandoned. Essentially, the Second Department held that the existence of the mortgage agreement, a contract, precluded recovery on the equitable theories, even though two of the three parties did not sign the mortgage agreement:

On September 6, 2005, the defendant Gladys Villa (hereinafter the borrower) executed a note that was secured by a mortgage on residential property located in Ossining (hereinafter the property). By bargain and sale deed dated March 8, 2006, the borrower retained a one-third interest in the premises for herself and conveyed the remaining interest to the plaintiffs, Miguel Auquilla and Hilda Guzman (hereinafter together the owners), as tenants in common. The borrower and the owners allegedly defaulted on their obligations under the note and the mortgage by failing to make the monthly payments due in December 2009, and thereafter. * * *

The mortgagee’s theory that the mortgage agreement does not govern the dispute since it was executed by the borrower and not by the owners is a novel one in this Court, but is ultimately unpersuasive. Although this Court has not explicitly recognized such a rule in this context, we now hold that there can be no quasi contract claim by a mortgagee against a third-party nonsignatory owner of property encumbered by a mortgage, the terms of which covers the subject matter of the dispute. Auquilla v Villa, 2025 NY Slip Op 02053, Second Dept 4-9-25

Practice Point: Where there is a contract which binds both signatories third-party nonsignatories, quasi-contractual theories of recovery are not available.