57 Pa. Stat. § 54b
Any written instrument may be acknowledged or any affidavit may be made by any person executing the same or swearing or affirming thereto, while on active duty with the armed forces of the United States, before a person having powers of a notary public under the provisions of the Act of Congress, approved the fifth day of May, one thousand nine hundred fifty, Chapter 169, section one, 64 Statutes 143, USC Title 50, section 732. Any such instrument in writing so acknowledged or sworn or affirmed to and certified under the hand of such person acting as a notary public may be offered in evidence without further proof; and if it relates to, concerns or conveys any interest in lands, it may be recorded in the recorder's office of the county or counties where such lands lie, and the record of the same shall be constructive notice of all matters contained therein; and such record or exemplification of the same, duly certified, shall be legal evidence in all cases in which the original would be competent evidence.
57 P.S. § 54b