72 Pa. Stat. § 5972
In all cases in which the county treasurer of any county within this Commonwealth may have sold seated lands for payment of delinquent taxes under the provisions of the said act approved the ninth day of May, one thousand nine hundred and twenty-nine (Pamphlet Laws, one thousand six hundred eighty-four), and the purchaser or purchasers paid the amount of his, her, or their bid or the amount of taxes and costs to the said treasurer, but said county treasurer failed for any reason to make or execute or acknowledge or deliver a deed to the purchaser or purchasers for said lands prior to the repeal of said act approved the ninth day of May, one thousand nine hundred and twenty-nine (Pamphlet Laws, one thousand six hundred eighty-four), but a deed for said seated lands has since been made, executed, acknowledged, and delivered to the purchaser or purchasers by the county treasurer who held the same, whether his term of office had expired or he remained in office at the time of said making, executing, acknowledging, and delivery thereof, or the said deed was made, executed, acknowledged, and delivered by his successor in office, the purchaser or purchasers, where the bid had exceeded the amount of taxes and costs, having made and executed a bond to the treasurer for the surplus money prior to the delivery of said deed, then the same shall be fully confirmed and approved, and the title of the purchaser or purchasers of said lands as valid to all intents and purposes as though the said deeds had been fully and regularly made, executed, acknowledged, and delivered by the then county treasurer and the surplus bond executed and delivered prior to the repeal of said act approved the ninth day of May, one thousand nine hundred and twenty-nine (Pamphlet Laws, one thousand six hundred eighty-four).
72 P.S. § 5972