Gene D. Dahmen

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 M. Perry is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Litigation - Labor and Employment. Stephen M., who practices law in Boston, Massachusetts, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephen M. is held by other top lawyers in the same geographic and legal practice area.

Gregory S. Bombard is a top attorney recognized by Best Lawyers in the practice area(s) of Trade Secrets Law. Gregory S., 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 Gregory S. is held by other top lawyers in the same geographic and legal practice area.

Scott S. Jones P.C. is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Private Funds / Hedge Funds Law and Tax Law. Scott S., who practices law in Boston, Massachusetts, has been recognized since 2012. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Scott S. is held by other top lawyers in the same geographic and legal practice area.

Keerthi Sugumaran is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Keerthi, 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 Keerthi is held by other top lawyers in the same geographic and legal practice area.

Amanda C. Holt is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Amanda C., who practices law in Boston, Massachusetts, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Amanda C. is held by other top lawyers in the same geographic and legal practice area.

Henry concentrates in all facets of estate planning, trust and estate administration, estate, gift and generation-skipping tax planning, prenuptial agreements, charitable giving planning including establishing and representing charitable trusts, foundations and other non-profit organizations.

Michael Summersgill is a first-chair trial lawyer who focuses on high-stakes technology litigation including patent, trade secret and general commercial litigation. He has represented major clients—such as Intel, NVIDIA, Natera, Vertex, Akamai and Quest Diagnostics, among many others—in multiple jurisdictions across the country. He has a long track record of winning cases under the most challenging circumstances and in the toughest jurisdictions—earning recognition, among ot...

Mark Burnett, a partner in the firm's Corporate, Private Equity, M&A/Corporate Governance and Technology Companies groups, focuses primarily on business, corporate and securities law matters, mergers and acquisitions, buyouts, and corporate finance and venture capital transactions. His clients include public and private companies in a range of industries (including software, Internet services, telecommunications services, healthcare services and water purification), venture capital and pr...

John J. Penny V is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. John J., who practices law in Boston, Massachusetts, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John J. is held by other top lawyers in the same geographic and legal practice area.