Go to channel Chapter 8 Part 2 Antitrust and Listing Agreement Types break at 30 mins Travis Everette 6.6K views In order for a contract to be cancelled during the contract period, both agent and seller will need to agree.For future listing agreements, stulipulate a 45 day cancelation policy. Com to register for classes! Unlock your dream home with Travis Shea, a seasoned and client-focused realtor on Long Island. Specializing in Suffolk County Residential Real Estate. Learn how to properly fill out all of the residential listing contract documents and everything associated with it. It is the obligation of a license holder to be knowledgeable and competent as a real estate brokerage practitioner. Listings and other agreements for real estate brokerage services must be solicited and accepted in a broker's name. Each property in a county must have a single appraised value.