If you are planning to make an offer in Philadelphia, we've compiled a stepbystep guide so you know what to expect. View the forms library.Make your opener as personal as possible. Do you know how to write an offer letter for a house? We're here to teach you the ins and outs to improve your chance of closing a deal. Utilize a Letter of Intent (LOI) to initiate negotiations for a sale, summarizing the terms of a forthcoming contract agreement. A Pennsylvania residential purchase agreement establishes a legal arrangement between a buyer and a seller in a real estate transaction. An Offer to Purchase Real Estate sets out the terms of a proposed real estate deal. Create yours now with our free form. Sometimes a court will order the Department of Records to transfer property.