Florida Realtors' Revised Exclusive Buyer Brokerage Agreements are Now Available. A listing agreement is a contract between homeowners and brokers that legally establishes how a realtor will find a property buyer on the seller's behalf.With this template you can establish the sale terms and conditions of a residential or commercial property and speed the process vastly! If the broker agrees, the agent can use the Modification to Listing Agreement form. Selling your home and not sure what a listing agreement is? Our comprehensive guide will help you navigate this crucial contract with ease. Contract Formation: A listing agreement is a contract for services. It is not required to be in writing in order for it to be enforceable. When a seller has more than one property to sale, is it appropriate to for the broker to use one listing agreement for both properties? This Agreement until a sales contract is pending on the Property. 40. 5.