Marianne LeBlanc
Principal | Sugarman and Sugarman, P.C.
Marianne LeBlanc is a medical malpractice, personal injury and nursing home abuse trial lawyer and principal of Sugarman and Sugarman, P.C. in Boston, Massachusetts. Admitted in Massachusetts; J.D., Boston College Law School (1993).
Meet Marianne
Contact
10th Floor
Boston, Massachusetts 02116
"I was hoping that I could make some small piece of the world a better place and I thought the law could help me do that."
Marianne LeBlanc is a Boston, Massachusetts, trial attorney and principal at Sugarman and Sugarman, P.C., where she represents injured clients in serious personal injury litigation, including medical malpractice, liquor liability, premises liability and nursing home cases.
LeBlanc joined the firm after receiving her law degree from Boston College Law School in 1993 and has been a principal since 1999. She is a Fellow of the American College of Trial Lawyers and has been selected to Massachusetts Super Lawyers every year from 2004 to 2025, including the Top 10 list in 2025. The Best Lawyers in America has listed her for personal injury litigation on behalf of plaintiffs from 2005 to 2027.
Her leadership roles include serving as chair of the Massachusetts Board of Bar Overseers after a 2018 appointment by the Supreme Judicial Court. She is Massachusetts governor to the American Association for Justice and sits on the board of the Massachusetts Academy of Trial Attorneys. She is a past president of the Women’s Bar Association of Massachusetts and the Women’s Bar Foundation of Massachusetts.
Experience and Expertise
Qualifications
Timeline
- Wellesley College, B.A. (1990)
- Boston College Law School, J.D. (1993)
- Admitted to the Massachusetts Bar (1993)
- Admitted to the U.S. District Court, District of Massachusetts (1994)
- Admitted to the U.S. Court of Appeals for the First Circuit (2020)
Practice Areas
- American College of Trial Lawyers (Fellow)
- American Board of Trial Advocates (Advocate)
- Massachusetts Bar Association
- Massachusetts Academy of Trial Attorneys (Board and Executive Board)
- American Association for Justice (Massachusetts Governor)
- Women's Bar Association of Massachusetts (Past President)
- Boston Bar Association
- Bar Association of Norfolk County
- The Best Lawyers in America, Personal Injury Litigation - Plaintiffs (2005-2027)
- The Best Lawyers in America, Lawyer of the Year, Personal Injury Litigation - Plaintiffs (2022, 2024)
- Top 10 Massachusetts Super Lawyers (2025)
- Massachusetts Super Lawyers (2004-2025)
- Top 50 Women Massachusetts Super Lawyers (2004-2025)
- Massachusetts Lawyers Weekly Hall of Fame Honoree (2026)
- Boston magazine Top Lawyers (2023-2025)
- Lawdragon 500 Leading Plaintiff Consumer Lawyers (2020-2026)
- Distinguished Service Award, American Association for Justice (2010, 2020-2022)
- Boston College Law School 75th Anniversary Alumni Award (2006)
- Settlement: Failure to Obtain Imaging Leads to Brain Injuries for Child: Settlement on the eve of trial in a medical malpractice case on behalf of a minor against a doctor at a major Boston-area hospital. The child had an arteriovenous malformation that ruptured and caused a stroke, and is permanently disabled.
- Jury Verdict: Wrongful Death Following Liver Transplant: Marianne LeBlanc obtained a jury verdict in a medical malpractice claim against a Boston-area transplant surgeon for wrongful death resulting from negligent liver transplant surgery.
- Settlement: Man With Cerebral Palsy Asphyxiated in Bed Rails: Settlement for the family of a 34-year-old man with cerebral palsy who died after asphyxiating between metal railings and the base of his bed while left awake and unattended for three hours.
- Settlement: Mismanaged Labor Results in Newborn's Death: Settlement of a medical malpractice case for the parents of a newborn who died several hours after birth due to mismanagement of labor and delivery.
- Settlement: Failure to Diagnose Hyperbilirubinemia in Newborn: Settlement for bilateral hearing loss in a newborn where a lab test showed elevated levels but the lab and physicians failed to act.
- Settlement: Failure to Diagnose Fatal Heart Attack: Settlement in a medical malpractice wrongful death case for the family of a 47-year-old man who was discharged from the hospital during an evolving heart attack. The source describes it as the second largest medical malpractice settlement reported in Massachusetts in 2017.
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