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.To securely and accurately complete the One Time Showing Agreement and ensure all legal bases are covered, click the button below. A real estate listing agreement is a contract between a property owner and a real estate agent. Fair Housing Act IT IS ILLEGAL FOR EITHER THE SELLER OR THE BROKER TO REFUSE TO DISPLAY, LIST, LEASE OR SELL, OR REFUSE TO NEGOTIATE. This is a "SAMPLE" version of the 6.1e form contract. (The small "e" in the name designates. Edit, sign, and share chicago area realtor listing agreements online. No need to install software, just go to DocHub, and sign up instantly and for free.