Atty. Thomas Michael McMahon

Atty. Thomas Michael McMahon

Thomas Michael McMahon is a lawyer practicing insurance coverage, commercial litigation, intellectual property litigation and 2 other areas of law. Thomas received a B.A. degree from Boston College in 1979, and has been licensed for 44 years.

Los Angeles Los Angeles 44 yrs experience 44 year
Call (866) 995-2420 Book Appointment

Profile Summary

About Thomas Michael McMahon at a glance

Thomas Michael McMahon is a Partner based in Los Angeles, California, practicing at Perkins Coie LLP. They have 44+ years of legal experience, licensed to practice since 1982. Their practice focuses on business, ip, litigation, environmental, and insurance. Admitted to practice in California U.S. District Court, Central, Northern and Southern Districts of California (1982). Educated at University of California at Los Angeles School of Law (J.D., 1982) and Boston College (B.A., 1979). Active member of Los Angeles County and American Bar Associations State Bar of California. Serands clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Thomas Michael McMahon is a lawyer practicing insurance coverage, commercial litigation, intellectual property litigation and 2 other areas of law
  • Thomas received a B.A. degree from Boston College in 1979, and has been licensed for 44 years
  • Thomas practices at Perkins Coie LLP in Los Angeles, CA

Practice Areas Explained

Thomas Michael McMahon's Areas of Practice

Each practice area below reflects the types of cases Thomas Michael McMahon 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.

Thomas Michael McMahon is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

Thomas Michael McMahon is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in California →

Civil Litigation

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

Thomas Michael McMahon is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in California →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

Thomas Michael McMahon is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in California →

Insurance Law

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

Thomas Michael McMahon is one of 121,912 insurance attorneys indexed nationally. Browse insurance attorneys in California →

Jurisdictional Context

Why local counsel matters in California

Practicing law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Los Angeles are typically filed in the local municipal court or the appropriate California state district court, depending on subject matter and amount in controversy. An attorney licensed in California 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 California courts without local counsel or pro hac vice admission.

Looking for additional California attorneys? Browse all attorneys in Los Angeles or all attorneys in California.

Frequently Asked

Common questions about Thomas Michael McMahon

Where is Thomas Michael McMahon's law office located?
Thomas Michael McMahon's law practice is located in Los Angeles, California. The firm is Perkins Coie LLP. You can contact the office directly through this profile page.
What practice areas does Thomas Michael McMahon handle?
Thomas Michael McMahon focuses on business, ip, litigation, environmental, insurance. Each practice area listed reflects experience handling cases of that type in California.
How long has Thomas Michael McMahon practiced law?
Thomas Michael McMahon has 44+ years of legal experience and has been licensed since 1982.
Where did Thomas Michael McMahon go to law school?
Thomas Michael McMahon earned their education at (J.D., 1982); (B.A., 1979).
How can I contact Thomas Michael McMahon for a consultation?
You can contact Thomas Michael McMahon 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.
University of California at Los Angeles School of Law
- 1982
B.A.
Boston College
- 1979

Bar Admissions

California U.S. District Court, Central, Northern and Southern Districts of California
Admitted: 1982

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