A OneTime Showing Agreement form is a legally binding agreement between the buyer's broker and the homeowner listing the property for sale. Fillable forms cannot be submitted electronically, but must be printed and mailed.Please visit eLicensing for online submission options. A One Time Showing Agreement is a commission agreement signed between a buyer's agent and a seller for specific named buyers. 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. This form is made available to real estate professionals through an agreement with or purchase from the California Association of REALTORS®. A residential real estate sale transaction usually begins at the time a broker obtains an agency contract in the form of a listing from the property owner. There is no law that requires a signed buyers agent agreement before a showing. The way real estate transaction are done in California is changing, and new mandatory forms will be introduced in the summer of 2024. A California real estate listing agreement is a type of contract used to grant authority to a real estate broker to sell residential property for a seller.