John P. Sherman

Joseph G. Mattson is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Medical Malpractice Law - Defendants. Joseph G., who practices law in Manchester, New Hampshire, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joseph G. is held by other top lawyers in the same geographic and legal practice area.

Greg counsels clients in all aspects of land use and real estate, including finance, planning, development, and litigation. His courtroom experience is impressive: He’s spent over 30 years serving as a trial judge, both in the United States Air Force and the New Hampshire Circuit Courts. Additionally, he previously practiced both business law and litigation with New Hampshire-based law firm Wiggin & Nourie. As a result of his experience on both sides of the bench, he is a uniquely e...

Mark Broth delivers industry-leading advice on a broad spectrum of employment, municipal, and school law matters, serves on the firm’s Board of Directors, and is the Managing Shareholder for the firm’s New Hampshire-based offices. Mark understands the impact that labor and employment laws have on people’s lives, and his substantial experience makes him the go-to attorney for “hot issues” that need effective representation and resolution. Mark counsels employers o...

Sean O'Connell is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Individuals and Personal Injury Litigation - Plaintiffs. Sean, who practices law in Dover, New Hampshire, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sean is held by other top lawyers in the same geographic and legal practice area.

Laura Tetrault is a top attorney recognized by Best Lawyers in the practice area(s) of Elder Law and Trusts and Estates. Laura, who practices law in Manchester, New Hampshire, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Laura is held by other top lawyers in the same geographic and legal practice area.

I have been a litigator at Devine Millimet for more than 27 years, practicing in the New Hampshire state and federal courts. My general commercial litigation practice covers land use and environmental matters, probate, and trust litigation. Another practice focus is Medicaid provider issues for social service agencies and long term care facilities, health insurance and managed care. I serve on the board of Devine Millimet and recently completed a term as chair of our Litigation Department. I ...

Marrielle B. Van Rossum is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law and Medical Malpractice Law - Defendants. Marrielle B., who practices law in Manchester, New Hampshire, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marrielle B. is held by other top lawyers in the same geographic and legal practice area.

Sarah Ambrogi is a top attorney recognized by Best Lawyers in the practice area(s) of Elder Law and Trusts and Estates. Sarah, who practices law in Manchester, New Hampshire, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sarah is held by other top lawyers in the same geographic and legal practice area.

Most of my work is with clients in all phases of real estate projects. I help negotiate construction contracts and resolve disputes when they arise. Once the building construction is complete, I represent real estate agents, buyers, and sellers in the purchase, sale, and leasing of residential and commercial properties. Read More About Matt Johnson .

Katherine Battles is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Katherine, who practices law in Manchester, New Hampshire, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Katherine is held by other top lawyers in the same geographic and legal practice area.