The Standard Agreement for the Sale of Vacant Land (Form ASVL) is the contract for the sale of unimproved real estate containing commonly used clauses. Find useful forms for property assessments, real estate property and deeds, Military Discharge (DD214) requests, and more.A Pennsylvania residential purchase agreement establishes a legal arrangement between a buyer and a seller in a real estate transaction. Sellers and Buyer agree as follows: 1. Parties. View the forms library. In order for us to open title for you, we will require a signed sales contract between the buyers and sellers of the property. The Basic Filling Out Of The PA Agreement Of Sale Contract. Was your real estate contract breached? Find out if so and what the remedy may be.