Marrielle B. Van Rossum


Location: Concord, New Hampshire
Phone: 603-223-2816
Fax: 603-224-2557

Marrielle joined Sulloway & Hollis in 2015 after spending three years representing the leading healthcare systems in and around Philadelphia in medical malpractice actions.

At Sulloway, Marrielle continues defending healthcare institutions and physicians in medical malpractice actions, while also advising a variety of companies on labor and employment issues and litigating other matters. Marrielle was born and raised on New Hampshire’s seacoast. Prior to attending law school, she worked in operations at a boutique oil trading firm in Boston.


Areas of Practice

Medical Malpractice
Health Care
Labor and Employment
General Litigation

Bar Admissions

New Hampshire
U.S. District Court District of New Hampshire
U.S. Court of Appeals for the First Circuit


Villanova University Charles Widger School of Law, Villanova, Pennsylvania

St. Lawrence University, Canton, New York
B.A. cum laude

Université de Rouen, Mont-Saint-Aignan, France

News & Announcements

Published Works

  • Co-Author, “Utilizing Your Alumni Network for Personal Development,” The Legal Intelligencer, May 14, 2015
  • Co-Author, Of Surgical Sponges and Flour Barrels, and Why Medical Experts Are Needed Even with a Res Ipsa Loquitur Instruction, 7 Drexel. L. Rev. 309 (2015)
  • Author, “Help Me Help You: A New Lawyer’s Guide to Working with an Assistant,” 15 Raising the Bar 6 (June 15, 2018)
  • Former Contributor, New Hampshire Employment Law Newsletter

Honors and Awards

  • 2018 – 2019 New England “Rising Star,” Super Lawyers
  • Symposium Editor, Villanova Environmental Law Journal
  • David G. Butterworth Editor Award
  • Staff Writer Spirit Award
  • Student Bar Association President
  • Dean’s Student Advisory Committee

Professional Associations and Memberships

  • New Hampshire Women’s Bar Association, Programming Co-Chair
  • Tri-State Defense Lawyers Association, New Hampshire Vice President
  • DRI, Young Lawyers Steering Committee, Philanthropic Activities Chair

Community Activities

  • Development Committee, Families First Health and Support Center
  • Alumni Advisory Board, Berwick Academy
  • Secretary and Board Member, Hidden Pond Farm Equine Rescue