N.Y. General Obligations Law § 5-1103: Written agreement for modification or discharge

§ 5-1103. Written agreement for modification or discharge. An

agreement, promise or undertaking to change or modify, or to discharge

in whole or in part, any contract, obligation, or lease, or any mortgage

or other security interest in personal or real property, shall not be

invalid because of the absence of consideration, provided that the

agreement, promise or undertaking changing, modifying, or discharging

such contract, obligation, lease, mortgage or security interest, shall

be in writing and signed by the party against whom it is sought to

enforce the change, modification or discharge, or by his agent.