You could use the Registration Agreement Between Broker and Owner (TAR 2401), available exclusively to Texas REALTORS®. This form allows you to register your buyer to cover the purchase of the owner's property during an agreed time period. It also contains language to provide that the owner will pay your negotiated fee should your buyer purchase the property. The agreement doesn't allow you to list the property for sale or require the owner to pay you a fee should the owner sell the property to someone else. This form could be used in situations where the broker is representing a buyer interested in farm and ranch or commercial property that is for-sale-by-owner. It is not intended to take the place of a buyer's representation agreement between a broker and his buyer client.