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 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. There is no law that requires a signed buyers agent agreement before a showing. This form is a listing agreement between a property owner (seller) and a broker, granting the broker the exclusive right to sell the property. To request a Limited Nonresident Commercial Broker License, complete and submit a Nonresident. Commercial License Application. Chris Barnette and Kandyce Ellis explain the latest OTP. A contract for selling a home is a legally binding agreement and one of the most important documents in a real estate transaction.