Claire A. Shepherd

Michael is the President and Managing Director of Shaheen and Gordon, P.A. He concentrates his practice on representing seriously injured victims of negligence. Michael received his undergraduate degree from the University of Massachusetts at Amherst in 1987 and in 1990 graduated from the Boston University School of Law, where he was honored as a Paul J. Liacos scholar. Michael began his litigation practice with the firm in 1990 and rapidly developed a significant trial practice representing ...

Dave serves as President and Managing Director of the firm. He also maintains an active practice. Dave represents firm clients in state and federal courts, arbitration and administrative proceedings. He routinely handles trade secret, non-competition, predatory hiring, discrimination, retaliation and whistleblower, wrongful termination, and healthcare related matters. He also frequently helps businesses and executives navigate employment separations. Dave is a certified mediator who serves in...

Matt is a Shareholder in the Corporate Department at Sheehan Phinney Bass & Green PA in Manchester, New Hampshire. He advises businesses and entrepreneurs on a wide range of legal and strategic matters affecting privately held companies. Matt works with clients across multiple industries and stages of growth, from early-stage start-ups to established companies planning for expansion, investment, or transition. His practice focuses on Closely Held Companies and Family Businesses Law, Corpo...

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.

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.

A founding shareholder of the firm, Michael leads the Litigation Practice Group, specializing in business and commercial litigation matters, defense of medical malpractice actions, and advising medical doctors and practices in a variety of legal matters. He is an accomplished trial lawyer in New Hampshire and Massachusetts state and Federal courts, and brings extensive experience to the investigation, evaluation, settlement or trial of major cases. Michael is a skilled litigator, effective ne...

Jared P. O'Connor is a top attorney recognized by Best Lawyers in the practice area(s) of Workers' Compensation Law - Claimants. Jared P., who practices law in Nashua, New Hampshire, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jared P. is held by other top lawyers in the same geographic and legal practice area.

David P. Eby is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice and Litigation - Trusts and Estates. David P., who practices law in Manchester, New Hampshire, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David P. is held by other top lawyers in the same geographic and legal practice area.

Provide corporate and commercial representation to closely-held companies for their business law needs. Also spend a significant amount of my practice on merger and acquisition representation.

Nick Abramson is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Plaintiffs, Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Nick, who practices law in Manchester, New Hampshire, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nick is held by other top lawyers in the same geographic and legal practice area.