Atty. John J. Thornton

Atty. John J. Thornton

John J. Thornton is a lawyer practicing business litigation, insurance litigation, appellate litigation and 1 other area of law.

Boston Boston 62 yrs experience 62 year
Call (857) 326-6448 Book Appointment

Profile Summary

About John J. Thornton at a glance

John J. Thornton is an Attorney based in Boston, Massachusetts, practicing at John J. Thornton. They have 62+ years of legal experience, licensed to practice since 1964. Their practice focuses on business, real estate, estate litigation, litigation, and insurance. Admitted to practice in Massachusetts (1964), U.S. District Court, District of Massachusetts (1965), U.S. Court of Appeals, First Circuit (1966), and U.S. Supreme Court (1972). Educated at Boston College Law School (J.D., 1964) and Boston University (M.B.A. Holy, 1959). Active member of Massachusetts Bar Association. Serands clients in Boston, MA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John J. Thornton is a lawyer practicing business litigation, insurance litigation, appellate litigation and 1 other area of law
  • John received a M.B.A. degree from Boston University in 1959, and has been licensed for 62 years
  • John practices at John J. Thornton in Boston, MA

Practice Areas Explained

John J. Thornton's Areas of Practice

Each practice area below reflects the types of cases John J. Thornton handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

John J. Thornton is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Massachusetts →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

John J. Thornton is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Massachusetts →

Estate & Trust Litigation

John J. Thornton is one of 20,023 estate litigation attorneys indexed nationally. Browse estate litigation attorneys in Massachusetts →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

John J. Thornton is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Massachusetts →

Insurance Law

Insurance attorneys for coverage disputes, bad faith claims, denied claims, and policy disputes.

John J. Thornton is one of 121,912 insurance attorneys indexed nationally. Browse insurance attorneys in Massachusetts →

Jurisdictional Context

Why local counsel matters in Massachusetts

Practicing law in Massachusetts. Legal matters in Massachusetts are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Boston are typically filed in the local municipal court or the appropriate Massachusetts state district court, depending on subject matter and amount in controversy. An attorney licensed in Massachusetts brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Massachusetts courts without local counsel or pro hac vice admission.

Looking for additional Massachusetts attorneys? Browse all attorneys in Boston or all attorneys in Massachusetts.

Frequently Asked

Common questions about John J. Thornton

Where is John J. Thornton's law office located?
John J. Thornton's law practice is located in Boston, Massachusetts. The firm is John J. Thornton. You can contact the office directly through this profile page.
What practice areas does John J. Thornton handle?
John J. Thornton focuses on business, real estate, estate litigation, litigation, insurance. Each practice area listed reflects experience handling cases of that type in Massachusetts.
How long has John J. Thornton practiced law?
John J. Thornton has 62+ years of legal experience and has been licensed since 1964.
Where did John J. Thornton go to law school?
John J. Thornton earned their education at (J.D., 1964); (M.B.A. Holy, 1959).
How can I contact John J. Thornton for a consultation?
You can contact John J. Thornton directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

J.D.
Boston College Law School
- 1964
M.B.A. Holy
Boston University
- 1959

Bar Admissions

Massachusetts
Admitted: 1964
U.S. District Court, District of Massachusetts
Admitted: 1965
U.S. Court of Appeals, First Circuit
Admitted: 1966
U.S. Supreme Court
Admitted: 1972

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