STAMFORD, CT-Veteran commercial broker Daniel A. Mambrino has left Cushman & Wakefield of Connecticut after 23 years to join CB Richard Ellis' offices here as a senior vice president in the corporate services area.

VALHALLA, NY-Reckson Associates Realty Corp., reports that Philips Electronics North America Corp. has signed a lease for 20,866 sf at its 100 Summit Lake Dr. property here.

BRISTOL, CT-Allstate Life Insurance Co., which recently took ownership of the Bristol Farms Plaza here has put the 150,000-sf shopping center on the market for sale, says officials with The Hutensky Group LLC.

STAMFORD, CT-UBS Warburg has completed its 338,000-sf expansion project at its US headquarters property here, including a 36,000-sf addition creating the largest securities trading floor in the world.

NEW HAVEN, CT-Two Connecticut rental apartment complexes--one in Ledyard near the Foxwoods Casino complex and another in the Litchfield County community of Woodbury--sell for a combined $13,275,000.

ELMSFORD, NY-Mack-Cali Realty Corp., reports it has negotiated nearly 400,000 sf in lease deals at its New York and Connecticut properties in the first quarter of 2002, which was significantly higher than its leasing activity at year's end 2001.

STAMFORD, CT.-Westchester County's overall office vacancy rate has shown some signs of improvement in recent months, prompting Cushman & Wakefield officials to say that the market is beginning to turn around from the post 9-11 slowdown.

ALBANY-New York State reports it has paid $3 million to acquire two parcels of land in Orange County totaling 634 acres of open space that will expand Sterling Forest State Park to almost 18,000 acres.