William Manchinton Jr

William Manchinton Jr

Monahan at Associate, P.C
  • Criminal Law, Domestic Violence, DUI & DWI ...
  • Massachusetts
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Claimed Lawyer Profile
Biography

I’m William J. Manchinton, Jr., a criminal defense attorney based in Massachusetts. I’ve been practicing law with the Law Office of Matthew W. Peterson since September 2024, where I focus on representing individuals facing criminal charges. My journey into this field wasn’t a straight line—I started in insurance defense, working on subrogation cases. But I quickly realized that my true passion lies in criminal law, where I can engage more directly with people and make a meaningful impact in their lives.

I graduated from George Washington University in 2015 with a double major in Philosophy and History, two subjects that sharpened my critical thinking and deepened my understanding of human nature and society. From there, I went on to earn my law degree from American University Washington College of Law in 2020.

While in law school, I worked with the Civil Advocacy Clinic, representing low-income clients in disability and employment matters. That experience reinforced my commitment to justice and advocacy—it gave me hands-on insight into how the law can be a powerful tool for people who might not otherwise have a voice.

Now, in my criminal defense practice in Boston, I fight for clients from all walks of life. Everyone deserves a fair defense, and I strive to be the person standing in their corner when they need it most.

Education
American University Washington College of Law
J.D.
American University Washington College of Law Logo
The George Washington University
B.A. | Double Major in History and Philosophy
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Professional Experience
Associate attorney
Monahan at Associate, P.C
Current
Litigated a variety of insurance defense cases, specializing in commercial property and subrogation.
Student Attorney
The Civil Advocacy Clinic
Current
Advocated for indigent clients with disabilities facing employment discrimination and exploitation.
Law Clerk
Brault Graham, LLC
Current
Assisted senior attorneys in a variety of civil practice areas, including medical malpractice, insurance defense, and wills & trusts.
Professional Associations
State Bar of Massachusetts  # 709430
Member
- Current
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Jurisdictions Admitted to Practice
Massachusetts
Massachusetts Board of Bar Overseers
ID Number: 709430
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Practice Areas
Criminal Law
Criminal Appeals, Drug Crimes, Expungement, Fraud, Gun Crimes, Internet Crimes, Sex Crimes, Theft, Violent Crimes
Domestic Violence
Domestic Violence Criminal Defense, Domestic Violence Restraining Orders, Victims Rights
DUI & DWI
Immigration Law
Asylum, Citizenship, Deportation Defense, Family Visas, Green Cards, Immigration Appeals, Investment Visas, Marriage & Fiancé(e) Visas, Student Visas, Visitor Visas, Work Visas
Divorce
Collaborative Law, Contested Divorce, Military Divorce, Property Division, Same Sex Divorce, Spousal Support & Alimony, Uncontested Divorce
Languages
  • English: Spoken, Written
Websites & Blogs
Website
Law Office of Matthew W. Peterson
Blog
F-1 Student Visa Revoked and SEVIS Status Terminated? Here’s What You Need To Know!
Contact & Map
55 Union Street
Boston, MA 02108
US