Mary Petronio

        Associate

        Mary advocates for her clients throughout all stages of litigation, from drafting initial pleadings through compiling appellate briefs.

        Mary’s wide-ranging practice includes complex commercial litigation, land use and property disputes, and eminent domain law. She has been involved with trials before the Massachusetts Superior Court, the Massachusetts Land Court, and the United States District Court for the District of Massachusetts, along with appeals before the Massachusetts Appeals Court and Supreme Judicial Court.

        Before joining Verrill, Mary served as a judicial intern in the chambers of the Honorable Allison D. Burroughs of the United States District Court for the District of Massachusetts and an intern in the Trial Division of the Massachusetts Attorney General’s Office. Prior to law school, she also worked as a legal analyst in a large intellectual property firm, honing a familiarity with IP work and an appreciation for innovation.

        Mary has a working fluency in Spanish due to her undergraduate study of international social movements and human rights in Buenos Aires, Argentina.

        When she’s not in the office, Mary can be found baking, traveling, or spending time (preferably near the water) with her family in Rhode Island, where she was born and raised.

        Services/Industries

        Education

        • Northeastern University School of Law (J.D.)
          • Senior Editor, Northeastern University Law Review
        • University of Vermont (B.A., cum laude)
          • Phi Beta Kappa Society
          • Global Studies Community Activism & Engagement Award
          • Sigma Delta Pi Spanish Honors Society
          • Honors College

        Public Service

        • Communications Intern, The Huertas Project
        • Intern, Justice Bridge Legal Center

        Bar Admissions

        • Massachusetts
        • Rhode Island

        Court and Other Admissions

        • U.S. District Court for the District of Massachusetts

        Memberships

        • Member, Massachusetts Real Estate Bar Association

        Firm Highlights

        Blog

        Phil Bartlett to Step Down as Chair of the Maine Public Utilities Commission

        On September 15, 2026, Governor Janet Mills announced that Phil Bartlett will step down as Chair of the Maine Public Utilities Commission (PUC)...
        Published Works

        Jay McCormack and Michael Fee Co-Author AHLA Article on Skin Substitute Enforcement Trends

        Verrill Partners Jay McCormack and Michael Fee co-authored an article for the American Health Law Association's Fraud and Abuse Practice Group...
        Press Releases

        Verrill Welcomes Health Care & Life Sciences Attorney Elpida Velmahos

        BOSTON, Massachusetts – Verrill is pleased to announce that Elpida Velmahos has joined the firm’s Health Care & Life Sciences Group as an...
        Press Releases

        Verrill Welcomes Litigation & Trial Attorney Emma Pooler

        PORTLAND, Maine – Verrill is pleased to announce that Emma Pooler has joined the firm’s Litigation & Trial Group as an Associate, resident in...
        Published Works

        Four Verrill Attorneys Co-Author Massachusetts Trends and Developments Chapter for Chambers and Partners Child Relocation 2026 Guide

        Verrill attorneys Mary H. Schmidt, Rachel A. Deering, Hannah R. Zukoff, and Mariah G. Tappan co-authored the “Trends and Developments” chapter...
        Blog

        A New Protected Class in Maine: Holders of Final Protection Orders

        In the lead-up to Domestic Violence Awareness Month in October, employers may be taking a closer look at how their policies and practices respond to...
        Alerts and Newsletters

        Verrill Secures SJC Victory for Boston Legacy FC in White Stadium Litigation

        Verrill has secured a significant appellate victory for Boston Legacy FC in the litigation challenging the redevelopment of White Stadium in...
        Blog

        Hurry Up and Wait

        This is the third in a series of Verrill blog posts on Maine’s packaging extended producer responsibility (“EPR”) law[1]. In July we reported...
        Media Mentions

        Robert Keach Discusses First Brands Chapter 11 Case in Law360

        Verrill attorney Robert Keach was recently quoted in a Law360 article examining the rejection of First Brands Group's Chapter 11 plan and the...
        Media Mentions

        Cybersecurity and AI Governance: Scott Anderson Featured in Massachusetts Lawyers Weekly

        Verrill Managing Partner Scott Anderson was recently featured in Massachusetts Lawyers Weekly discussing how law firms can build attorney buy-in for...
        Blog

        Section 530A Account Update: ERISA Status of Trump Accounts

        The Department of Labor has issued important guidance addressing whether employer programs that permit contributions to Section 530A accounts (and...
        Press Releases

        97 Verrill Attorneys Recognized by Best Lawyers® 2027, Including Four Named Lawyers of the Year

        AUGUSTA, Maine, BANGOR, Maine, BOSTON, Mass., PORTLAND, Maine, and WESTPORT, Conn., (August 20, 2026) – Verrill is proud to announce that 97...