Mary has a wealth of experience in trusts and estates, domestic relations and probate litigation at the trial and appellate levels. Her sophisticated practice focuses on guiding clients through complex gift, estate and income tax planning, trust and estate planning, prenuptial and post nuptial agreement preparation, negotiation and litigation, and estate administration.

Mary serves as an expert witness in the Massachusetts probate and superior courts. She has also been frequently appointed by the Probate & Family Court to serve as a fiduciary and guardian ad litem in various probate and family law matters. Mary served on the committee that drafted the new Massachusetts Uniform Trust Code. Prior to joining Verrill, Mary was a founding partner of Schmidt & Federico, P.C

Mary has lectured extensively on domestic relations, tax and trust and estate subjects, including issues related to same sex couples. She has authored chapters for a number of Massachusetts Continuing Legal Education publications, including: “Massachusetts Probate Manual,” “Massachusetts Divorce Law and Practice,” “A Practical Guide to Estate Planning in Massachusetts,” and “Drafting Wills and Trusts in Massachusetts.” In addition, she is a co-editor of the 2012-2022 Massachusetts Probate Law Sourcebooks.



  • Cornell University  (B.A.)
  • University of Chicago School of Law  (J.D.)
  • Boston University School of Law  (LL.M.)

Public Service

  • Director, Massachusetts Continuing Legal Education, Inc. (2011-present)
  • Named to the Massachusetts Clients’ Security Board of the Supreme Judicial Court (Former Chairperson) (1997–2003)
  • Member, Board of Directors, Boston Center for Adult Education (1996-2001)
  • Trustee, Social Law Library (1990-1996)
  • Director, Boston YWCA (1986-1996)

Bar Admissions

  • Massachusetts


  • Member of the Boston, Massachusetts Bar Associations
  • Member of the Dukes County and American Bar Associations
  • Member (Former President), Mass. Family & Probate Inns of Court
  • Member (Former President), Boston Estate Planning Council
  • Fellow, Massachusetts Bar Foundation
  • Fellow, American Bar Foundation
  • Fellow, American College of Trust & Estate Counsel
  • Member and Former Moderator of the Boston Probate Forum


  • Recognized in Chambers High Net Worth under Family/Matrimonial
  • Listed as one of Boston Magazine’s “Super Lawyers” and one of the top 50 women lawyers in New England and also included in the 2013 edition of “The Best Lawyers in America,” where she was named lawyer of the year in the trust and estate litigation practice area
  • Woodward & White, in the the specialty of trusts and estates lifetime member
  • Madison’s Who’s Who, Life Time Member
  • Martindale-Hubbell, Preeminent AV Rating
  • National Association of Estate Planners & Councils, Accredited Estate Planner
  • Massachusetts Continuing Legal Education Scholar-Mentor Award (2010)
  • Estate Planner of the Year, Boston Estate Planning Council (1995)
  • Listed in The Best Lawyers in America© under Elder Law, Family Law, Litigation- Trusts and Estates in Boston, Massachusetts (2024)

To learn more about third-party ratings and rankings, and the selection processes used for inclusion, click here.

Court and Other Admissions

  • United States District Court for the District of Massachusetts
  • United States Supreme Court