John Thain's sprawling estate in Westchester encompasses 10 beautiful acres, marked by its presence in three different towns. This magnificent 1910 mansion, which he bought in 1995, offers generous outdoor space and luxurious features. Thain, who previously headed NYSE and Merrill Lynch during the 2008 financial turmoil, successfully navigated CIT Group's restructuring before stepping back from the corporate scene. Today, he devotes his time to board memberships and environmental conservation.