A One Time Showing Agreement is a commission agreement signed between a buyer's agent and a seller for specific named buyers. A OneTime Showing Agreement form is a legally binding agreement between the buyer's broker and the homeowner listing the property for sale.Charging them for your time to show the home is what they actually want. Discover the essentials of onetime showing agreements in real estate transactions. 1) In consideration of BROKER listing and attempting to obtain a purchaser or tenant for SELLER'S property known as: the. It's always rude to knowingly waste someone's time. Always. What I would suggest is you be honest about your situation. In the event Seller chooses to cancel this Sale Contract, the. Most real estate agents have you sign an exclusivity contract for a certain amount of time. In Boise, the IAR has come out with new showing agreements that can be non-binding.