Pennsylvania 12. Writ of Execution — Mortgage Foreclosure is a court order issued by a court of law to a sheriff or constable to enforce a money judgment entered against a defendant in a lawsuit. The writ orders the sheriff to take possession of real estate (mortgaged property) owned by the defendant and to sell it at public auction. The proceeds are then used to satisfy the judgment. The types of Pennsylvania 12. Writ of Execution — Mortgage Foreclosure include: judicial foreclosure, power of sale foreclosure, and strict foreclosure.