21 Pa. Stat. § 381
Deeds duly executed and acknowledged out of the State may be recorded. Any and every grant, bargain and sale, release or other deed of conveyance or assurance of any lands, tenements or hereditaments in this Commonwealth, and any power or powers of attorney to make and execute such sale, conveyance, mortgage or transfer of any lands, tenements or hereditaments in this Commonwealth, made and executed in any of the United States, may be recorded in the county in which such lands, tenements or hereditaments are situated, if the acknowledgment thereof be taken in due form before any officer or magistrate of the state wherein such deed, et cetera, is executed, authorized by the laws of said state to take the acknowledgment of deeds or other instruments of writing therein; and such acknowledgment is either verified by the official seal of the officer or magistrate before whom it is taken or authenticated by a certificate of the clerk or prothonotary of any court of record in such state, that the officer or magistrate so taking such acknowledgment, is duly qualified by law to take the same.
21 P.S. § 381