DELRAN, N.J. – New York-based Insignia/ESG has arranged the sale of a 327-unit, $20 million luxury apartment complex in Delran, N.J. Tenby Chase Investors LLC, an affiliate of Ridgewood, N.J.-based Pantzer Properties Inc., bought the complex from Mack-Cali Realty Corp., Cranford, N.J., which developed the complex in the 1970s. Joseph J. Verdejo of Insignia/ESG represented Mack-Cali in the transaction.