With decades of experience as a trial and appellate litigator—and now as Managing Partner of Rubin and Rudman—John brings a unique combination of legal insight and strategic leadership to his work with clients and colleagues.

John’s litigation background includes nearly 40 trials in state and federal courts, more than 25 appellate matters—including before the US Supreme Court—and thousands of resolved cases spanning insurance, commercial, and regulatory disputes. He has served as both advocate and arbitrator, and is a certified mediator. His reputation as a thoughtful and incisive advisor is especially valued by insurers, whom he counsels on complex coverage and extracontractual matters. As the insurance industry continues to face increased scrutiny and evolving public expectations, John’s ability to contextualize legal risk and guide strategy has become central to his practice.

Over the years, John has represented clients in high-stakes matters involving the US Department of Defense, Department of Justice, Environmental Protection Agency, and the Massachusetts Attorney General’s Office. He also served as a Special Assistant Attorney General for the Commonwealth.

As Managing Partner and a member of the firm’s Executive Committee, John leads Rubin Rudman’s strategic planning and growth. During his tenure, the firm has significantly expanded its attorney ranks, revenue, and community involvement, while deepening its commitment to philanthropy and diversity initiatives. In his legal and leadership roles, John is known for being progressive, collaborative, and steadfastly focused on helping clients and colleagues succeed.