A Commission Agreement for Sale is used for one-time showings of real estate so a Realtor can show a home to a prospective buyer and be paid a commission. A One Time Showing Agreement is a commission agreement signed between a buyer's agent and a seller for specific named buyers.Date: Real Estate Broker: Copy returned to Buyer on the _____ day of. , ______ by: personal delivery mail facsimile. Florida Realtors' Revised Exclusive Buyer Brokerage Agreements are Now Available. – Florida Realtors® released new showing agreement forms on Tuesday. A OneTime Showing Agreement form is a legally binding agreement between the buyer's broker and the homeowner listing the property for sale. These agreements clarify the relationship between you and your buyers, protect your time and effort, and ensure you're properly compensated for your work. Exclusive Right to Lease - Commercial (ERLC-1). This form is a listing agreement for commercial property in which the seller grants to the listing broker the.