A One Time Showing Agreement is a commission agreement signed between a buyer's agent and a seller for specific named buyers. In this video I'm going to talk about everything you need to be thinking about directly after getting that listing agreement signed.A OneTime Showing Agreement form is a legally binding agreement between the buyer's broker and the homeowner listing the property for sale. Use this form to change or add a broker-dealer on an existing Franklin Templeton 529 account. Represents the buyer or tenant (BUYER'S AGENT). A listing agreement is a contract between homeowners and brokers that legally establishes how a realtor will find a property buyer on the seller's behalf. It is required to complete and sign a written agreement before showing a home. Apply to Real Estate Agent, Financial Advisor, Videographer and more! Buy, sell, and trade stocks online with a brokerage account from Wells Fargo Advisors WellsTrade. A managing broker may be licensed to only one firm at any one time.