This is a legally binding Real Estate Purchase Contract ("REPC"). Utah law requires real estate licensees to use this form.A one time showing agreement can give an agent permission to enter the sale, it does not conform to contracts we accept for entry. A One Time Showing Agreement is a commission agreement signed between a buyer's agent and a seller for specific named buyers. Flat Fee MLS Listing Salt Lake City Utah. It's only requires when committed to a sale, not to looking at or showing property. This is changing in the summer, but is not current standard practice. To securely and accurately complete the One Time Showing Agreement and ensure all legal bases are covered, click the button below. To help you prepare the paperwork for selling a house without a realtor, here is a list of 12 musthave documents. Individuals who wish to obtain a real estate license in the state of Utah must: 1.