Kirk A. Carter

Rich is the leader of Sullivan’s Tax Group. He concentrates on state tax and local tax (SALT) litigation and transactional planning involving corporate, personal income and sales/use tax matters. He has more than two decades of experience before the Massachusetts Appellate Tax Board, the Supreme Judicial Court, various state Departments of Revenue and the Internal Revenue Service on a range of issues, including corporate nexus, domicile, apportionment, step transaction, and unitary repo...

Stephen T. Mears is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Private Funds / Hedge Funds Law. Stephen T., who practices law in Boston, Massachusetts, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephen T. is held by other top lawyers in the same geographic and legal practice area.

John M. Mutkoski is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. John M., who practices law in Boston, Massachusetts, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John M. is held by other top lawyers in the same geographic and legal practice area.

Seth P. Berman is a top attorney recognized by Best Lawyers in the practice area(s) of Privacy and Data Security Law. Seth P., who practices law in Boston, Massachusetts, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Seth P. is held by other top lawyers in the same geographic and legal practice area.

Past President of the Massachusetts Bar Association, Marsha V. Kazarosian continues to serve on the MBA’s Executive Management Board. She has been identified as a Super Lawyer by New England Super Lawyers Magazine each year since 2006. She has been identified as one of the Top 50 Women Lawyers in MA and New England, and a Super Lawyer in Civil Rights, Personal Injury Litigation, and Family Law. In 2006, she was showcased as Massachusetts Super Lawyers Magazine’s cover story, featu...

Marc E. Fitzgerald is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Marc E., who practices law in Boston, Massachusetts, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marc E. is held by other top lawyers in the same geographic and legal practice area.

Ronaldo Rauseo-Ricupero is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Ronaldo, who practices law in Boston, Massachusetts, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ronaldo is held by other top lawyers in the same geographic and legal practice area.

Cynthia Mazareas has more than 30 years of experience in serving as a trusted adviser to companies in the life sciences industry. She applies her deep knowledge to provide strategic business counsel to boards, management teams and in-house counsel, representing high-growth private and public companies in day-to-day corporate matters and helping companies navigate through complex business transactions. Ms. Mazareas is Chambers recognized, named in Best Lawyers in America for biotechnology and ...

Valerie A. Moore is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law and Land Use and Zoning Law. Valerie A., who practices law in Boston, Massachusetts, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Valerie A. is held by other top lawyers in the same geographic and legal practice area.

Sandy Dibble is a member of the Litigation, Health Care and Employment practice groups. Prior to joining the firm, Sandy served as a law clerk for Justice Francis J. Quirico of the Massachusetts Supreme Judicial Court. Since then, he has concentrated his practice in resolving problems and disputes for individuals and for-profit and non-profit enterprises through advice, negotiation, litigation, arbitration and mediation involving a wide range of matters including health care, antitrust, trade...