N.Y. Gen. Constr. Law § 42

§ 42. Register of county. Any act done in pursuance of law by the\nregister of a county shall be deemed to be a compliance with any\nprovision of law authorizing or requiring such act to be done by the\ncounty clerk of such county, and any instrument or writing filed,\nentered or recorded in pursuance of law in the office of a register of a\ncounty, shall be deemed to be a compliance with any provision of law\nauthorizing or requiring such paper to be filed, entered or recorded, as\nthe case may be, in the office of the clerk of such county. The term\ncounty clerk when used in relation to conveyances of real property or\nthe filing or recording of instruments which are or may be filed in the\noffice of the register of a county, shall include the register of each\ncounty in which there is a register.\n