Top Stories Korea firm Mastern Investment buys $290.6M stake in SL Green’s One Madison December 19, 2021 8:42 pm One Madison Avenue (Credit: Google) The Korean alternative asset management firm Mastern Investment Management bought a 25.5 percent staTo read an article sign up for a 7-day free trial to a Post subscription, just $10 per month. To access data including daily updated court records, sales, loans, new development and more, subscribe here to Professional level. If you are a subscriber log in to read the rest of this content. Continue Reading Previous Boston Properties allegedly owes Harry Macklowe $30M in consulting fees, according to lawsuitNext Kathy Ho files plans for 87-unit mixed-use building in Sunnyside