Thomas N. O'Brien is the Founding Partner and Managing Director of The HYM Investment Group, LLC. HYM is currently leading the development of over eighteen (18) million square feet of mixed-use development in Greater Boston, including the following notable and complex projects: Bulfinch Crossing (Government Center Garage Redevelopment), Boston Landing, NorthPoint, and Suffolk Downs. Prior to HYM, O'Brien served as a Managing Partner for JPI, a national developer and owner of multifamily communities, and as a Managing Director in Boston and New York for Tishman Speyer, one of the world’s leading real estate firms. O'Brien also led the Boston Redevelopment Authority as its Director and Chief of Staff, overseeing the development of over 12 million Square Feet of projects in Boston, from 1994 to 2000. O'Brien has served as Chairman of The Greater Boston Real Estate Board and currently serves on the Board of the Taubman Center for State and Local Government at Harvard University and as Vice Chair of the Board of Overseers of The Anti-Defamation League of New England. In 2011, the Governor of Massachusetts appointed O’Brien to the Board of the Massachusetts Housing Finance Agency. In 2016, Mayor Martin J. Walsh appointed O’Brien to the Board of Trustees of the Rose F. Kennedy Greenway Conservancy. O’Brien is a graduate of Brown University and Suffolk University Law School, and is a member of the Massachusetts Bar.