Stephen A. Mackenzie

Stephen A. Mackenzie focuses his practice on all aspects of family law, bringing 15 years of experience to the resolution of complex domestic relations matters. He has extensive experience litigating high-conflict, complex divorce cases involving the division of high-net-worth estates, post-divorce modifications, contempt actions, and appellate work. More About Stephen A. Mackenzie Mr. Mackenzie is recognized for his ability to navigate intricate financial challenges in family law. He has significant trial experience—including numerous multi-day trials—and is particularly well-versed in the resolution of matters involving complex compensation structures and exotic financial instruments. His practice is defined by a commitment to achieving equitable results through a nuanced, fact-specific analysis of each client's unique financial landscape. Mr. Mackenzie has served as counsel on numerous cases before the Massachusetts Appeals Court. Most recently, he successfully represented the wife in De Felipe v. Suwwan, a case involving the division of closely held securities and equity compensation. In this matter, the Appeals Court affirmed a 50-percent division of certain closely held securities and clarified that the Baccanti “time-rule” formula does not automatically apply to all unvested assets, particularly those generating immediate income or dividends. Teaching and Publications Beyond his litigation practice, Mr. Mackenzie is a contributor to the legal community. He has authored articles published by Massachusetts Continuing Legal Education (MCLE) and has served as a faculty member for professional seminars. In 2026, he is participating as a featured panelist in the Family Law Financial Mastery Series, discussing cutting-edge strategies for navigating the financial topics that decide complex cases. Professional Activities and Leadership Mr. Mackenzie currently serves on the Steering Committee for the Family Law Section of the Boston Bar Association. Awards and Honors Honors A Best Lawyer in America® in Family Law

• Partner

• Member, Boston Bar Association
• Member, Massachusetts Bar Association
• Member, Middlesex Bar Association
• Steering Committee for the Family Law Section of the Boston Bar Association