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.Craft a winning house offer letter with our customizable template and tips. Do you mind sharing a little more about the property you want to write your offer on? This sales contract ("Contract") is offered on. ("Date of Offer") between. Purchase and Sale Agreement. A purchase and sale agreement is a contract between a buyer and seller for transacting a property in exchange for a specific price. Hello everyone, my wife and I are looking to purchase our first home after renting for years and saving up for a down payment. There are some more nuanced items you should be sure to include in your real estate purchase contract, including the financing terms and closing date.