Seller appoints Broker as Seller's sole and exclusive real estate agent and grants to Broker the exclusive right to sell the Property. 2. 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.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? I am a sales agent and am not sure how to fill out the listing agreement form. TXR 2406 can be used when the seller agrees to pay the buyer's broker through the terms of the sales contract. A listing agreement is a legally binding contract between a homeowner and the real estate agent or broker who will be listing the property for sale. Note: The Texas Association of Realtors and TREC update promulgated forms regularly. A listing agreement is a contract between a real estate agent or broker (the industry professional who will be listing the property for sale) and a home seller. And if the seller breaches the agreement, the agent is owed a commission. When completing the listing agreement, you and your agent will agree on the amount of the real estate commission.