Regulation. §175.15 does not permit self-renewing exclusive listing agreements.) 4. The price at which the property will be offered must be set forth. Net.Florida Realtors has pre-approved and standardized a few different formats of the listing agreement that we can go ahead and use both for sale. A real estate listing agreement also known as a seller's agent agreement is a contract between a property owner and a real estate broker. Many include a renewal clause, which provides an option to extend the listing period if both parties agree. This section provides in-depth information regarding each clause. A listing agreement is not an enforceable contract unless it contains: a. The street address of the property b. An extender clause protects the original real estate listing agent from losing their commission if the property sells after the listing agreement ends. Having a seasoned professional to help is invaluable.