I agree that most agents will look towards a 1 month rental fee as the full commission amount. This is split between the landlord and tenant agents. This amount includes the MLS listing, but more important to you is the fiduciary responsibility that the listing agent as your agent. The agent should make sure that you get the necessary credit report, occupancy inspections, etc. versus solely posting on the MLS. Agents also have access to many other internet sites for marketing of your rental in addition to the MLS.