72 Pa. Stat. § 5973
Whenever any county treasurer who shall have made sale of seated lands for unpaid taxes shall die or be removed from office, or when the term of office of such treasurer shall have expired before any valid or effective deed or deeds are executed by him to the purchaser or purchasers, then and in every such case it shall be the duty of the treasurer for the time being to perfect such title and execute a deed or deeds to the purchaser or purchasers, and they are hereby empowered and required upon the full discharge and payment of the money or price for which the said lands were sold with such cost and charges as remain unpaid to the former treasurer to make, execute and acknowledge any deed or deeds and to perform and do all other matters and things that by the former treasurer might, could or ought to have been performed or done, which when done shall be held and adjudged as effectual in law as if the title had been completed by the former treasurer.
72 P.S. § 5973