Real estate investment trust Mack-Cali Realty ( CLI) announced that it has signed definitive contracts to acquire Gale Real Estate Services. The company will also acquire interests in about 2.8 million square feet of office properties in New Jersey. The transactions are expected to close in April. The Cranford, N.J.-based company will acquire Gale for $12 million in cash, $10 million in common operating partnership units, and up to an additional $18 million in cash based on an earn-out formula. The acquisition will give Mack-Cali Realty ownership interests in 13 class A office properties, valued at $378 million, and totaling 1.9 million square feet in Northern and Central New Jersey and acquire about half of the ownership interests in seven class A office properties, valued at $127.5 million, and totaling about 900,000 square feet, also in Northern and Central New Jersey.