N.Y. Real Prop. Law § 331
A copy of a law of a foreign country or of a decree of the executive power of such a country, appointing an agent or attorney with power to execute and deliver in the name or on behalf of such foreign country, any instrument in writing granting, assigning, surrendering or in any manner affecting any estate or interest of such government in real property within this state, or assigning or discharging any lien or claim of such government upon real property within this state, or of a law or decree revoking such an appointment, if in English, or a translation into English of any such law or decree, if the original thereof be in a language other than English, when certified and recorded as hereinafter provided, shall be presumptive evidence of the authority of such agent or attorney. Certification of such copy or translation shall be made under the great seal of such foreign country and shall be to the effect that the same is a true copy or translation of such law or decree. Such copy or translation of such law or decree, when so certified, may be recorded in the office of the clerk or register of any county of this state, and such copy or translation when so certified and recorded, or a certified copy of the record thereof, shall be received as evidence in any court of this state. The authority conferred under any instrument so recorded shall not be deemed revoked as to property situated in any county except by the recording in such county of a copy or translation of a law or decree to that effect, duly certified in the manner hereinbefore provided. Nothing in this section shall in any way affect the right or power of a foreign country to acquire, hold or convey real property in this state, or be construed to confer any such right or power.
N.Y. Real Prop. Law § 331