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. In this article, we will talk about the Arizona real estate purchase agreement and mandatory disclosures that sellers must make prior to the sale.1. Enter buyer's and seller's names. Typically, a real estate agent will work with the buyer to complete the agreement and come up with a purchase price to include in the contract. This attachment should be given to the Buyer prior to the submission of any offer and is not part of the Residential Resale Real Estate Purchase. How to properly fill out the Arizona Association of Realtors Resale Purchase Contract using Dotloop. An Arizona purchase agreement facilitates the sale of real estate for an agreedupon price between the buyer and seller.