Usually, the seller will have a few days to make a decision. Here is a sample of the most commonly used residential real estate purchase contract in Arizona.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. In Arizona, we have a special form called a Pre-Qualification Form. Real estate offer letters can be in the form of a pdf file, template file, sample, or form. The most important letter you'll submit to a home seller is the one you'll get from your lender stating that you are preapproved for a mortgage. Craft a winning house offer letter with our customizable template and tips. An Arizona residential purchase agreement is a legal document outlining the terms and conditions for a buyer's purchase of residential property from a seller. My name is Maria Smith and I'm writing to you on behalf of my family regarding our offer on your home. View form-by-form revisions.