How to do a simultaneous closing while using the buyer contingency addendum to the Arizona Residential Purchase Contract (AAR). Buying a home is a big decision and an even bigger investment.Use these 12 steps to help you through the home buying process in Arizona. Options are contracts that offer investors the potential to make money on changes in the value of, say, a stock without actually owning the stock. Buyer Broker Agreement – An employment contract to represent a buyer in the intended purchase of property. BEACON is the Arizona Secretary of State's online campaign finance filing system. Buyer Broker Agreement – An employment contract to represent a buyer in the intended purchase of property. MLS – local multiple listing service. They can pay with e-check or ACH debit if they have that option set up on their account. More detailed information is available in the Arizona VFC Operations Guide.