Offer and Acceptance. In the state of Arizona, no contract for real estate exists until the contract is offered and accepted in writing (A.An offer is just a contract with only buyer signature on it. It's not a contract until the seller agrees to it and signs it. Some of the most important points in your offer are;. How to properly fill out the Arizona Association of Realtors Resale Purchase Contract using Dotloop. Arizona Purchase Contract Training. You are legally bound to honor the agreement. Once you have an executed sales contract, the clock starts on your inspection period. Typically the home inspection period is 10 days after contract accepted.