Atty. John D. Cassidy

Atty. John D. Cassidy

John D. Cassidy is a lawyer practicing civil litigation, medical malpractice, products liability and 3 other areas of law.

Boston Boston 46 yrs experience 46 year
Call (857) 465-7365 Book Appointment

Profile Summary

About John D. Cassidy at a glance

John D. Cassidy is a Senior Partner based in Boston, Massachusetts, practicing at Ficksman & Conley, LLP. They have 46+ years of legal experience, licensed to practice since 1980. Their practice focuses on medical malpractice, product liability, litigation, and civil rights. Admitted to practice in Massachusetts (1980), New York (1981), and New Hampshire (1997). Educated at Boston University (J.D., 1980) and Fairfield University (B.A., 1977). Recognitions include AV Preeminent. Serands clients in Boston, MA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John D. Cassidy is a lawyer practicing civil litigation, medical malpractice, products liability and 3 other areas of law
  • John received a B.A. degree from Fairfield University in 1977, and has been licensed for 46 years
  • John practices at Ficksman & Conley, LLP in Boston, MA

Practice Areas Explained

John D. Cassidy's Areas of Practice

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

Medical Malpractice

Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.

John D. Cassidy is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Massachusetts →

Product Liability

John D. Cassidy is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in Massachusetts →

Civil Litigation

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

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

Civil Rights

Civil rights attorneys for discrimination, police misconduct, constitutional rights, and civil liberties cases.

John D. Cassidy is one of 70,245 civil rights attorneys indexed nationally. Browse civil rights 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 D. Cassidy

Where is John D. Cassidy's law office located?
John D. Cassidy's law practice is located in Boston, Massachusetts. The firm is Ficksman & Conley, LLP. You can contact the office directly through this profile page.
What practice areas does John D. Cassidy handle?
John D. Cassidy focuses on medical malpractice, product liability, litigation, civil rights. Each practice area listed reflects experience handling cases of that type in Massachusetts.
How long has John D. Cassidy practiced law?
John D. Cassidy has 46+ years of legal experience and has been licensed since 1980.
Where did John D. Cassidy go to law school?
John D. Cassidy earned their education at (J.D., 1980); (B.A., 1977).
How can I contact John D. Cassidy for a consultation?
You can contact John D. Cassidy 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.
What awards or recognition has John D. Cassidy received?
John D. Cassidy's notable recognition includes: AV Preeminent.

Education

J.D.
Boston University
- 1980
B.A.
Fairfield University
- 1977

Awards

AV Preeminent

Bar Admissions

Massachusetts
Admitted: 1980
New York
Admitted: 1981
New Hampshire
Admitted: 1997

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