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Mark William Helwig

Personal injury Attorney at Sudbury, MA

Not yet reviewed

also known as Mark W. Helwig

  • State Years
    Massachusetts - MA 28 years
    New Jersey - NJ 30 years
    Pennsylvania - PA 30 years
  • Licensed for 28 years
    State MA
    Acquired 1995
    Active No misconduct found
  • Licensed for 30 years
    State NJ
    Acquired 1994
    Resigned Without Prejudice No misconduct found
  • Licensed for 30 years
    State PA
    Acquired 1993
    Inactive No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Mark

Learn Mark’s areas of practice.

I am a trial lawyer with over 25 years of experience representing individuals against large corporations, insurance companies, and the government. I have tried over a hundred cases, including trying, and winning, major felony cases, DUI cases, drug cases, and others. 

In addition to my criminal practice, I handle personal injury claims, including wrongful death claims, serious accident cases, truck accidents, car accidents, premises liability, and slip and falls. 

I have collected millions of dollars for my clients in personal injury cases. 

I have represented clients in the District Court, Superior Court, Probate and Family Court, Land Court, Federal District Court, Appeals Court, and Supreme Judicial Court.

Photos and videos


Law Office of Mark W. Helwig
323 Boston Post Road
Sudbury, MA, 01776-3022

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  • Free Consultation 30 minutes
  • Contingency 33%-33%
Payment methods
Cash, Check, Credit Card


AVVO RATING 10.0 (Superb)

Work Experience

  • Principal
  • Law Office of Mark W. Helwig
  • 2002 - Present
  • Partner
  • Liebman & Helwig, LLP
  • 1995 - 2002
  • Associate
  • Dilworth, Paxson, Kalish & Kauffman
  • 1993 - 1995


  • Villanova University School of Law
  • JD - Juris Doctor
  • 1993
  • University of Pennsylvania
  • 1987


  • MetroWest Bar Association
  • Executive Board Member
  • 2003 - Present
  • Massachusetts Bar Association
  • Member
  • N/A
  • MetroWest Bar Association
  • President
  • 2009 - 2011

Honors and Awards

  • Peer Review Rated
  • Martindale-Hubbell
  • 2024
  • Peer Review Rated
  • Martindale-Hubbell
  • 2023
  • Peer Review Rated
  • Martindale-Hubbell
  • 2022
  • Preeminent 5.0 out of 5
  • Martindale-Hubbell
  • 2000
  • Magna Cum Laude
  • Villanova Law School
  • 1993
  • Order of the Coif
  • Villanova Law School
  • 1993
  • Rev. Joseph Ullman Award for Excellence in Criminal Law
  • Villanova Law School
  • 1993
  • Associate Editor
  • Villanova Law Review
  • 1993
  • Finalist -- Client Counseling Competition
  • Villanova Law School
  • 1993
View all awards

Attorney endorsements

Received (5)
Given (2)
Endorse Mark
Criminal defense Attorney | Aug 29
Relationship: Fellow lawyer in community
"Mr. Helwig is an exceptional attorney. Although I have been practicing law for 24 years as a judge, magistrate, law professor, prosecutor, and private attorney, I learn from his responses on Avvo every time that he posts. If I needed an attorney, I would hire him. I recommend him with no reservation. It would be the best investment of your life to hire him to represent you."
Criminal defense Attorney | Jul 08
Relationship: Fellow lawyer in community
"I endorse this lawyer. Attorney Helwig is an excellent attorney who will zealously advocate for his clients."
Unknown Attorney | Aug 20
Relationship: Fellow lawyer in community
"I endorse this lawyer. Attorney Helwig is an outstanding attorney with an excellent reputation. He is a strong and zealous advocate for his clients and a credit to the legal profession. I highly endorse him."
Personal injury Attorney | Aug 15
Relationship: Fellow lawyer in community
"I endorse and highly recommend Atty. Helwig. He has commitment to the clients, to the profession, and to the larger community. This attorney has an impressive command of his areas of practice and he is gifted at straight-forward and understandable legal advice. I'm pleased to join with so many others in recommending this attorney as a skilled and dedicated lawyer."
Criminal defense Attorney | Jun 15
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Criminal defense
Divorce and separation