A One Time Showing Agreement is a commission agreement signed between a buyer's agent and a seller for specific named buyers. The BRBC is a widely used document in California real estate transactions, in situations where buyers seek dedicated representation.A buyer representation agreement is a contract between a buyer and a real estate brokerage. Tour the latest Buyer Representation Agreement and Residential Listing Agreement and related forms, get crucial background on how and why these were drafted. Once you select a plan, the necessary documents will be automatically assigned to you. A buyer broker agreement is used between home buyers and their real estate agents, much like a listing agreement is used between sellers and theirs. Just as before, sellers will sign an agreement with their listing agent, setting their commission. It is required to complete and sign a written agreement before showing a home. Exclusive righttosell listings give the listing agent and their brokerage exclusive rights to represent the seller's home.