Many include a renewal clause, which provides an option to extend the listing period if both parties agree. Access the SDAR form library of San Diego Association of REALTORS.For questions about forms, call today! What do you do when the real estate listing agreement expires? 1.3 Contract Extension. A listing agreement is a legally binding contract between the seller (you) and the real estate brokerage that helps you sell your home. A residential listing agreement is an contract between a property owner and a real estate broker where the broker lists the property for sale. The listing agreement is a contract that lays out specific, agreedupon terms, giving the real estate agent permission to market a home to buyers. 1. Authority to Sell Property: Seller gives Broker the NON-EXCLUSIVE RIGHT TO SELL the real and personal property. Been set forth in the written listing agreement or the written offer to purchase).