Pennsylvania Statutes Title 16 P.S. Counties § 3708. Registration of ownership of property

(a) All persons, corporations, municipal corporations, authorities, districts or political subdivisions, hereafter acquiring any interest in real estate, whether by purchase, gift, devise, inheritance, order of court, treasurer's sale, sheriff's sale, judicial sale, eminent domain or otherwise, shall register in the office of the county commissioners their deeds, resolutions, orders of court or other evidence of title, so that the same may be endorsed in accordance with the act of May 2, 1899 (P.L. 162). 1

(b) No real estate so registered shall be subject to sale for taxes or other municipal claims, except in the name of the owner as registered in accordance with the provisions of this section.

(c) All persons, corporations, municipal corporations, authorities, districts or political subdivisions, heretofore acquiring any interest in real estate, may register their real estate in accordance with the provisions of this section.