View the forms library. Send a For Sale By Owner prospecting letter to neighbors in 3 simple steps.Learn how to generate leads for your FSBO campaign. Letters of intent can take many forms. 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. Pennsylvania Free Letter of Intent ( LOI ) Template. Utilize our Letter of Intent to formally express your desire to buy a product or service. Get a comprehensive understanding of Pennsylvania real estate purchase and sale agreements with our indepth overview and free template. A Pennsylvania residential purchase agreement establishes a legal arrangement between a buyer and a seller in a real estate transaction. The timeline for completing the sale can be a deciding factor.