Stephen W. Kidder concentrates his practice in the areas of taxation and professional fiduciary services.

Practice Focus

Stephen W. Kidder concentrates his practice in the areas of taxation and professional fiduciary services. Mr. Kidder counsels a number of New England’s leading nonprofit organizations in the areas of governance, regulatory and compliance issues. In addition, he serves as a private fiduciary for many family trusts. Mr. Kidder represents major professional sports players associations nationally on both state and local tax issues.

Mr. Kidder was formerly the firm’s managing partner, and serves as President and Managing Director of Hemenway Trust Company, a private fiduciary firm based in Salem, New Hampshire.

Prior to joining Hemenway & Barnes LLP in 1991, Mr. Kidder served as Commissioner of Revenue (1987 to 1991) and as General Counsel to the Secretary for Administration and Finance for the Commonwealth of Massachusetts. Mr. Kidder also was a Clerk for the Honorable A. David Mazzone, Judge of the United States District Court for the District of Massachusetts.

Representative Matters

  • Mr. Kidder serves as tax counsel to all professional athlete players associations, including the Major League Baseball Players Association, the National Basketball Players Association, the National Football League Players Association, the National Hockey League Players Association and the Major League Soccer Players Association. Mr. Kidder represents the players associations on tax issues across the country.
  • Mr. Kidder serves as General Counsel to Citizens Energy Corporation.
  • As counsel, Mr. Kidder obtained regulatory and court approval for the expansion and renovation of the Isabella Stewart Gardner Museum.

Related News & Resources

Firm News
Hemenway & Barnes Named Among the "Best Law Firms" of 2025 by Best Lawyers
Firm News
Hemenway & Barnes Attorneys Recognized in 2025 Edition of Best Lawyers in America®
Event
Boston College Law School's 2024 Law Day Awards Dinner