Michael T. Sullivan is a trial and appellate litigator with nearly 30 years of experience successfully advocating for clients in major cases and many jurisdictions. His practice focuses on construction and real estate disputes, business litigation, and professional liability; and he is a frequent author and seminar panelist in these areas. Michael holds the AV® Preeminent™ rating, the highest peer-reviewed rating from Martindale–Hubbell, given to attorneys who display exceptional legal skills and ethical conduct. He is consistently named in the annual lists of U.S. News and World Report’s “Best Lawyers in America” and Massachusetts Super Lawyers. Since 2021, he has been a Fellow of the Construction Lawyers Society of America, a selective, invitation-only association of highly experienced construction lawyers throughout the world.

Michael is firmly committed to understanding the unique needs of his clients and working efficiently to find creative and practical solutions to their legal problems. He is a member of the Massachusetts, Boston, Rhode Island, and Essex County Bar associations, and he served as the long-time Chairman of the Zoning Board of Appeals in the town of Manchester-by-the-Sea, where he lives with his wife and two daughters.


CLSA Fellow


  • Columbus School of Law, Catholic University of America, J.D.  (1992)
  • Catholic University of America, B.A. (1989)

Bar Admissions

  • Supreme Judicial Court of Massachusetts
  • United States District Court for the District of Massachusetts
  • United States District Court for the District of Rhode Island
  • United States Court of Appeals for the First Circuit
  • United States Supreme Court

Memberships & Affiliations

  • Boston Bar Association
  • Massachusetts Bar Association
  • Rhode Island Bar Association
  • Essex County Bar Association