Explore FSBO transaction services in Pennsylvania with Pennsylvania Land Titles, guiding you from start to finish for a smooth sale. A Pennsylvania purchase agreement creates a secured contract for a residential property transaction.You'll need to fill out or obtain at least 14 documents, including the purchase agreement, closing statement, and bill of sale. A Pennsylvania residential purchase agreement establishes a legal arrangement between a buyer and a seller in a real estate transaction. First, include the property address as well as its legal description (found on the deed). Then go into detail about what is included or excluded from the sale. Have the offer and contract forms available for potential buyers. One property I sold FSBO the buyers signed a contract on the spot. View the forms library.