53 Pa. Stat. § 7232
Every political subdivision, before approving or paying the claim or account of any person against such political subdivision, shall have power to inquire of the receiver of taxes of the political subdivision whether such person is indebted to it for or on account of any delinquent taxes or municipal claims. In any case where it shall be found that such person is so indebted to the political subdivision, or when such person is indebted to the political subdivision for any sum of money, which debt shall have been reduced to judgment in favor of such political subdivision, the approval and payment of such claim or account in whole or in part shall be withheld by the officer or employe authorized by law to make such approval or payment, until such person shall have entered into an agreement with the political subdivision as hereinafter provided.
53 P.S. § 7232