Multiple Listing Service - a US based service that consolidates listings of homes for sale from all licenced real estate agents. Several MLSs can exist in any given region or area. These MLSs are comprised of cooperating brokers and/or Associations of Realtors. The purpose is for all Realtors of that given area who belong to the included brokerages and/or associations to share their listing information in one database which they can search, compile market reports from, and and submit data to to ensure exposure to all other Realtors and real estate professionals. The MLS system is the #1 reason to hire a Realtor to help sell your home, or help you buy a home. In addition to their expertise on the current market, information that may not be on MLS, and years of experience dealing with legal issues, disclosures, and problems that may come up during the escrow process, a Realtor will have access to this exclusive and robust database of information, called MLS