Addendum to Exclusive Buyer-Broker Agreement (Subagency), Cancellation and Termination of the Exclusive Right to Sell Listing Agreement and Agency Disclosure. This is a legally binding Real Estate Purchase Contract ("REPC").Utah law requires real estate licensees to use this form. Candidates are required to review and sign a Candidate Rules Agreement form. An agency agreement form is a legal template that outlines the business's expectations of the contractor and how they will be compensated. Real Estate Agent; Salt Lake City, UT. Replied about 6 years ago. Mardee is representing Carol in the sale of her Salt Lake City condo, and they've signed an exclusive agency listing agreement. Dual agency occurs when a brokerage firm or an agent represents both the buyer and the seller in the same transaction.