New York Consolidated Laws, Real Property Law - RPP § 310. Authentication of acknowledgments and proofs made within the state

1. When a certificate of acknowledgment or proof is made, within this state, by a commissioner of deeds, a justice of the peace, town councilman, village police justice, or a judge of any court of inferior local jurisdiction, such certificate does not entitle the conveyance so acknowledged or proved to be read in evidence or recorded in any county of this state except a county in which the officer making such certificate is authorized to act at the time of making the same, unless such certificate is authenticated by a certificate of the clerk of such county;  provided, however, that all certificates of acknowlledgment   1 or proof, made by a commissioner of deeds of the city of New York residing in any part therein, shall be authenticated by the clerk of any county within said city, in whose office such commissioner of deeds shall have filed a certificate under the hand and seal of the city clerk of said city, showing the appointment and term of office of such commissioner;  and no other certificates shall be required from any other officer to entitle such conveyance to be read in evidence or recorded in any county of this state.

2. Except as provided in this section, no certificate of authentication shall be required to entitle a conveyance to be read in evidence or recorded in this state when acknowledged or proved before any officer designated in section two hundred ninety-eight of this article to take such acknowledgment or proof, nor shall such authentication be required for recording in the office of the city register of the city of New York of such acknowledgment or proof by a commissioner of deeds of the city of New York.