New York Laws
Title 3 - Requirements for Effectiveness or Enforceability of Modification or Discharge
15-303 - Release in Writing Without Consideration or Seal.

ยง 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.