Ariel Lahmi’s Beekman Real Estate Investment Management picked up a Tribeca commercial building for $21 million, which he plans to convert into residential condominiums. Lahmi paid $1,006 per square foot to buy the five-story, 20,800-square-foot building at 83-85 Worth Street from Izi Moraru’s Vimar Realty Corporation, according to the brokers who negotiated the deal. “He’s buying at $1,000 a foot on the existing space, and even with the loss factor he still feels very comfortable […]