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Gregory P. Swain

Probate Litigation Associate
Greg Swain Headshot(2026)

Greg brings specialized experience and attention to detail in his representation of individuals involved in probate, estate, and trust litigation, contested guardianships, and related civil disputes.

Since entering legal practice, Greg has focused on probate, estate, and trust litigation, and on related disputes, such as those involving family real estate. He is experienced in assisting clients through difficult situations involving complex personal and family dynamics. Greg applies a sophisticated strategy that blends creative problem-solving with a deep command of specialized legal principles. Greg’s experience allows him to navigate the nuances of probate procedure, providing a distinct advantage in will and trust litigation.

Greg’s litigation practice includes:

  • Will contests and trust disputes
  • Breach of fiduciary duty claims
  • Partition actions and family real estate disputes
  • Contested guardianships and conservatorships
  • Equity actions in the Probate and Superior Courts

In addition to handling will contests and breaches of fiduciary duty, Greg also represents clients in guardianship and conservatory matters.

Greg is an active member of the State Bar of California and the Massachusetts Bar Association, where he stays at the forefront of evolving fiduciary standards. Outside of work, Greg enjoys hiking, skiing, and other outdoor activities, as well as exploring historical sites around Boston.

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