The MLS and Texas Real Estate rules require that you sign a listing agreement before we can list your property on the MLS. An exclusive right to sell is a listing agreement that gives a specific broker or agent the sole right to market and sell a property.Exclusive agency listings have an agreement with the listing broker as a non-agency representative of the house sellers. The MLS and Texas Real Estate rules require that you sign a listing agreement before we can list your property on the. MLS. No information is available for this page. Seller appoints Broker as Seller's sole and exclusive real estate agent and grants to Broker the exclusive right to sell the Property. 2. Exclusive agency listing agreements are most often used with flatfee listing brokers who provide limited service to their clients. Most real estate agents will recommend an exclusive righttosell agreement. Landlord appoints Broker as Landlord's sole and exclusive real estate agent and grants to Broker the exclusive right to lease the Property. 2. With the "exclusive agency" agreement, the "right and authorize to sell" extends to the homeowner.