Writing a real estate offer letter can feel intimidating, but these steps will help you craft a compelling and personal message. Focus on three things: State your intentions, show that you have the financial means to make the purchase and make a personal appeal to the seller.This is going to be how to fill out the agreement of sale for pennsylvania. If you are planning to make an offer in Philadelphia, we've compiled a stepbystep guide so you know what to expect. Browsing for Pa Real Estate Seller Form? Here, you can download this form and change or fill it out with our PDF editing software online. This is a listing contract for sale it's about three or four pages gets a little tricky in some spots but we're gonna kind of review it all right now. An agreement to sell real estate, or a purchase agreement, is a legally enforceable document that specifies the terms of a real estate transaction. Craft a winning house offer letter with our customizable template and tips. Realty Transfer Tax is due when you present the sale document for recording.