About us

We Will Take Your Case Personally!

We are unwavering Massachusetts criminal defense attorneys, representing clients in Essex, Middlesex, Norfolk, Plymouth, Suffolk, and Worcester County, Massachusetts. When the stakes are highest, we provide bold, calculated legal protection. No tricks—just powerful defense and meaningful results.

Criminal ● Family ● Firearms ● Immigration

Essex - Middlesex - Norfolk - Plymouth - Suffolk - Worcester

MWP Martindale Client Champion Badge 2026
Boston Criminal defense attorney matthew peterson Lawyer Legion
Google Top Rated 2026
Massachusetts Criminal Defense Lawyer: The Law Office of Matthew W. Peterson | 189+ 5-Star Google Reviews

The Right Lawyer

Makes All The Difference

The Law Office of Matthew W. Peterson grew from one attorney’s commitment to providing meaningful legal representation into a trusted resource for individuals facing serious legal challenges. With more than 15 years of combined experience practicing law, the firm has focused not only on sound legal advocacy but also on providing steady guidance during difficult and uncertain times.

Each case is approached with care and seriousness, recognizing that the outcome can have lasting consequences for a client’s future. Guided by professional responsibility, courtroom experience, and respect for the legal system, the firm continues its work advocating for fair treatment and due process for every client it represents.

Criminal Defense
Firearms and Gun Rights
Clerk Magistrate's Hearing
Family Law and Divorce
Immigration and Deportation
RMV Hearings
Criminal Defense
Firearms and Gun Rights
Clerk Magistrate's Hearing
Family Law and Divorce
Immigration and Deportation
RMV Hearings

Choose Law Office of Matthew W. Peterson

Relentless Advocacy

We deliver aggressive, ethical defense through meticulous investigation, challenging misconduct, and fiercely protecting your rights.

Affordable and Accessible

Expert legal help made accessible with transparent pricing and clear communication statewide.

Proven Track Record

We build our reputation on winning cases across Massachusetts with personalized, strategic, and fiercely committed advocacy.

Understandable Explanations

We simplify your criminal defense, turning complex legal terms into clear guidance so you understand every step with confidence.

Law Office of Matthew W. Peterson Team

Attorney Bill Manchinton | Massachusetts Criminal Defense Lawyer: The Law Office of Matthew W. Peterson | 189+ 5-Star Google Reviews

Trial Counsel

Attorney Matthew W. Peterson | Massachusetts Criminal Defense Lawyer: The Law Office of Matthew W. Peterson | 189+ 5-Star Google Reviews

CEO / Managing Attorney

Attorney Margaret Petersen | Massachusetts Criminal Defense Lawyer: The Law Office of Matthew W. Peterson | 189+ 5-Star Google Reviews

Trial Counsel

Mariah Selby | Paralegal | The Law Office of Matthew W. Peterson

Mariah Selby

Paralegal Expert

Franchette Rodriguez | Case Manager | Law Office of Matthew W. Peterson

Elle Rodriguez

Case Manager

Adrian Jake | Intake Specialist | The Law Office of Matthew W. Peterson

Adrian Jake

Operations Manager

Renee-Cajigal-intake-Specialist

Renee Cajigal

Intake Specialist

AS SEEN ON
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AS SEEN ON
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AND OVER 500 NEWS SITES
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Boston Office

Salem Office