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. Use form MEBSSA1 to modify or to cancel the EBBA agreement.Showing Agreement — A Showing Agreement is used for one of a few related properties and names the specific property addresses. Below is a list of forms that you may download for free from our website. A One Time Showing Agreement is a commission agreement signed between a buyer's agent and a seller for specific named buyers. Forms are available for download in Adobe Acrobat PDF format. You will need the free Acrobat Reader to view and print PDF forms. A new rule is making waves in the realm of home buying: the requirement for prospective buyers to sign a buyer's agreement before viewing a property.