9 Dec 2019 Listing Fees. What is the cost to sell with Redfin? If the home doesn't sell, do I still have to pay Redfin? What services are included in the listing And while a listing agreement is good for the agent, because it obligates you to work with the agent for at least a minimum amount of time, it also protects you, the seller, by explaining the agent’s responsibilities and what you can do if he or she doesn’t meet them. A real estate listing agreement needs to include certain information in order to be valid. A valid listing agreement should contain: The start date and end date of when the property will be posted in the listing. The price at which the home is going to be offered up for sale (i.e., the “list price”)