N.Y. Real Property Law § 321
1. The recording officer shall mark on the record of a mortgage the word "discharged" when there is presented to him a certificate or certificates signed as hereinafter provided, and acknowledged or proved and certified in like manner as to entitle a conveyance to be recorded, specifying that the mortgage has been paid or otherwise satisfied and discharged.
2.
5. The term "personal representative" as used in this section shall include the following: