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

        Alerts and Newsletters

        Maine’s New Employer Surveillance Law, 26 M.R.S. § 620-A

        Effective July 14, 2026 Maine employers that electronically monitor employees must comply with a new disclosure law effective July 14, 2026. Under...
        Press Releases

        Verrill Recognized by U.S. News as One of the Best Law Firms to Work for in 2026

        BOSTON, Mass., BANGOR and PORTLAND, Maine, GREENWICH and WESTPORT, Conn., – Verrill has been featured on U.S. News’ 2026 Best Companies to Work...
        Blog

        SECURE 2.0 Roth Catch-Up Rules and the 403(b) 15-Year Catch-Up: What Tax-Exempt Employers Need to Know

        Tax-exempt employers whose 403(b) plans offer catch-up contributions for participants age 50 and above should be well on their way to compliance with...
        Media Mentions

        Robert Keach Quoted in Law360 on SIMAD Summer Camp Bankruptcy Sale

        Verrill attorney Robert Keach was recently quoted in a Law360 article examining the Chapter 11 bankruptcy proceedings involving SIMAD Holdings and...
        Media Mentions

        Chris Tsouros Featured in Law360’s Coverage of Sports Real Estate Deals

        Verrill Partner Chris Tsouros was recently recognized in a Law360 article highlighting law firms involved in significant sports real estate projects...
        Blog

        What Maine’s New Employer Surveillance Law Means for Maine Employers

        Maine employers who monitor their workforce, whether through productivity software, GPS, call recording, or cameras, have a new compliance obligation...
        Blog

        Run Don’t Walk: The Implication of “While Supplies Last” Prize Promotions

        This month a big-chain grocery store has been offering daily mystery boxes during specific timed drops on a first-come, first-served basis, to users...
        Blog

        Maine’s Noncompete Statute is Reshaped for Health Care Workers: What You Need to Know

        Employers of individuals who are licensed under state law to perform, or provide, health care services in the State of Maine should be prepared for...
        Media Mentions

        Steven Davis Featured in the Environmental Business Journal

        Steven Davis, President of Verrill Strategic Consulting, was recently interviewed and featured in the Environmental Business Journal, Volume 39...
        Blog

        What is a Bonus for Purposes of ERISA?

        An ongoing dispute about a Department of Labor advisory opinion published last September raises a basic but unanswered question under the ERISA: What...
        Media Mentions

        Verrill Recognized by WMTW for Partnership Supporting Hunger Relief in Maine

        Verrill was recently featured in coverage by WMTW News 8 for its role in a collaborative effort to combat food insecurity across southern...
        Press Releases

        33 Verrill Attorneys, Across Four Offices, Recognized in the 2026 Chambers USA Guide

        BOSTON, Massachusetts, PORTLAND, Maine, WESTPORT, Connecticut, and WASHINGTON, D.C. – Verrill has been recognized as a Leading Firm in 14...