Austrian Music Mogul Waltzes Into 620 Park; Dr. Marks Departs
One of Manhattan’s most sticklerish co-op boards is about to take on a new resident. On Dec. 7, the denizens of 620 Park Avenue, a 14-story brick building near East 65th Street, admitted music executive Michael Koch to their ranks, swapping him for longtime resident Dr. Paul Marks, the soon-to-retire chief executive of Memorial Sloan-Kettering Read More
