CENTURY 21 Hartford is a real estate firm that offers residential and commercial properties for sale, lease and rent through the regional Multiple Listing Service (MLS). The company deals in the buying and selling of a range of single-family homes, condos, multifamily residences and vacant lots. It is a part of Century 21 Real Estate, which is the franchisor of one of the world s largest residential real estate sales organizations. The parent company provides training, management, administrative and marketing support services. It comprises more than 8,300 independently owned and operated franchised broker offices in over 50 countries and territories worldwide. Century 21 Real Estate is a subsidiary of Realogy Corporation, which is a global provider of real estate and relocation services. CENTURY 21 Hartford has a presence in Farmington, Mich.