Earlier this week, we wrote about Manhattan mega-developer Glenwood's planned sequel to Emerald Green, the green luxury rental building in the resurgent Garment District that has been (yet another) breakout success for the luxury rental developers. Glenwood is behind a number of the most popular rental listings at Luxury Rentals Manhattan, and the company's carefully planned luxury rentals -- usually done in collaboration with architect Costas Kondylis, but always striking well-amenitized and intelligently done -- have an appeal that's easy to see. In The Real Deal, Adam Piore profiles Glenwood head honcho Leonard Litwin, and writes about the company's striking success during the ongoing (if improving) downturn in NYC real estate.