New York Consolidated Laws, General Obligations Law - GOB § 15-303. Release in writing without consideration or seal

A written instrument which purports to be a total or partial release of all claims, debts, demands or obligations, or a total or partial release of any particular claim, debt, demand or obligation, or a release or discharge in whole or in part of a mortgage, lien, security interest or charge upon personal or real property, shall not be invalid because of the absence of consideration or of a seal.