Mack-Cali Realty Corp was incorporated in the State of Maryland on May 24, 1994. The Company, together with its subsidiaries is a fully-integrated, self-administered, self-managed real estate investment trust ("REIT") providing leasing, management, acquisition, development, construction and tenant-related services for its properties and third parties. As of December 31, 2013, the Company owned or had interests in 279 properties, consisting of 267 commercial properties, primarily class A office and office/flex properties, totaling approximately 31.0 million square feet, leased to approximately 2,000 commercial tenants, and 12 multi-family rental properties containing over 3,600 residential units, plus developable land. The Properties are comprised of 252 buildings, primarily office and office/flex buildings totaling approximately 30.5 million square feet (which include 22 buildings, primarily office buildings aggregating approximately 2.9 million square feet owned by unconsolidated joint ventures in which the Company has investment interests), six industrial/warehouse buildings totaling approximately 387,400 square feet, 12 multi-family properties totaling 3,678 apartments, five parking/retail properties totaling approximately 121,500 square feet, one hotel and three parcels of land leased to others. The Properties are located in seven states, primarily in the Northeast, plus the District of Columbia. The Properties compete for tenants with lessors and developers of similar properties located in their respective markets mainly on the basis of location, the quality of properties, leasing terms, services provided, the design and condition of the Properties, and reputation as an owner and operator of quality office properties in the relevant market.