View the forms library. The Listing Contract (Seller Agency Contract) – Exclusive Right to Sell Real Estate (Form XLS) gives exclusive right to sell residential real property.Find useful forms for property assessments, real estate property and deeds, Military Discharge (DD214) requests, and more. A listing agreement is a contract between homeowners and brokers that legally establishes how a realtor will find a property buyer on the seller's behalf. A Pennsylvania real estate listing agreement gives a real estate agent the right to list, market, and sell residential property for a homeowner. The PAR forms are available from the. Pennsylvania Association of REALTORS.