Atty. John A. Campion

Atty. John A. Campion

John A. Campion is a lawyer practicing commercial litigation, securities litigation, product liability and 17 other areas of law.

52 yrs experience 52 year
Call (877) 820-1210 Book Appointment

Profile Summary

About John A. Campion at a glance

John A. Campion is a Partner, practicing at Fasken Martineau DuMoulin LLP. They have 52+ years of legal experience, licensed to practice since 1974. Their practice focuses on criminal defense, business, class action, m&a, and product liability. Admitted to practice in Ontario (1974), Northwest Territories (1974), New Brunswick (1993), and Nova Scotia (1998). Educated at University of Toronto (J.D., 1972) and University of Western Ontario (B.A., 1967). Recognitions include AV Preeminent.

Verified attorney profile · Updated June 2026

About

  • John A. Campion is a lawyer practicing commercial litigation, securities litigation, product liability and 17 other areas of law
  • John A. received a B.A. degree from University of Western Ontario in 1967, and has been licensed for 52 years
  • John A. practices at Fasken Martineau DuMoulin LLP in Toronto, ON

Practice Areas Explained

John A. Campion's Areas of Practice

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

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

John A. Campion is one of 214,271 criminal defense attorneys indexed nationally. Browse criminal defense attorneys →

Business & Corporate Law

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

John A. Campion is one of 501,317 business attorneys indexed nationally. Browse business attorneys →

Class Action

John A. Campion is one of 26,424 class action attorneys indexed nationally. Browse class action attorneys →

Mergers & Acquisitions

John A. Campion is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys →

Product Liability

John A. Campion is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys →

Frequently Asked

Common questions about John A. Campion

What practice areas does John A. Campion handle?
John A. Campion focuses on criminal defense, business, class action, m&a, product liability. Each practice area listed reflects experience handling cases of that type in their licensed jurisdictions.
How long has John A. Campion practiced law?
John A. Campion has 52+ years of legal experience and has been licensed since 1974.
Where did John A. Campion go to law school?
John A. Campion earned their education at (J.D., 1972); (B.A., 1967).
How can I contact John A. Campion for a consultation?
You can contact John A. Campion 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 A. Campion received?
John A. Campion's notable recognition includes: AV Preeminent.

Education

J.D.
University of Toronto
- 1972
B.A.
University of Western Ontario
- 1967

Awards

AV Preeminent

Bar Admissions

Ontario
Admitted: 1974
Northwest Territories
Admitted: 1974
New Brunswick
Admitted: 1993
Nova Scotia
Admitted: 1998
British Columbia
Admitted: 2000
Québec
Admitted: 2002

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