Atty. Patrick Joseph McMahon

Atty. Patrick Joseph McMahon

Patrick Joseph McMahon is a lawyer practicing business law, civil litigation, litigation. Patrick received a B.A. degree from San Francisco State College in 1970, and has been licensed for 52 years.

Danville Danville 52 J. Erfahrung 52 year
Call (925) 351-0230 Book Appointment

Profile Summary

About Patrick Joseph McMahon at a glance

Patrick Joseph McMahon is a Member based in Danville, California, practicing at Gagen Mccoy Mcmahon Koss Markowitz Fanucci. They have 52+ years of legal experience, licensed to practice since 1974. Their practice focuses on business and litigation. Admitted to practice in California (1974), U.S. District Court, Northern District of California (1974), and U.S. District Court, Eastern District of California (1990). Educated at Boston College (J.D., 1973) and San Francisco State College (B.A., 1970). Recognitions include AV Preeminent. Serands clients in Danville, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Über uns

  • Patrick Joseph McMahon is a lawyer practicing business law, civil litigation, litigation
  • Patrick received a B.A. degree from San Francisco State College in 1970, and has been licensed for 52 years
  • Patrick practices at Gagen, McCoy, McMahon, Koss, Markowitz & Fanucci in Danville, CA

Practice Areas Explained

Patrick Joseph McMahon's Areas of Practice

Each practice area below reflects the types of cases Patrick Joseph 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.

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

Civil Litigation

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

Patrick Joseph McMahon is one of 454,532 litigation attorneys indexed nationally. Browse litigation 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 Danville 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 Danville or all attorneys in California.

Frequently Asked

Common questions about Patrick Joseph McMahon

Where is Patrick Joseph McMahon's law office located?
Patrick Joseph McMahon's law practice is located in Danville, California. The firm is Gagen Mccoy Mcmahon Koss Markowitz Fanucci. You can contact the office directly through this profile page.
What practice areas does Patrick Joseph McMahon handle?
Patrick Joseph McMahon focuses on business, litigation. Each practice area listed reflects experience handling cases of that type in California.
How long has Patrick Joseph McMahon practiced law?
Patrick Joseph McMahon has 52+ years of legal experience and has been licensed since 1974.
Where did Patrick Joseph McMahon go to law school?
Patrick Joseph McMahon earned their education at (J.D., 1973); (B.A., 1970).
How can I contact Patrick Joseph McMahon for a consultation?
You can contact Patrick Joseph 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.
What awards or recognition has Patrick Joseph McMahon received?
Patrick Joseph McMahon's notable recognition includes: AV Preeminent.

Education

J.D.
Boston College
- 1973
B.A.
San Francisco State College
- 1970

Awards

AV Preeminent

Bar Admissions

California
Admitted: 1974
U.S. District Court, Northern District of California
Admitted: 1974
U.S. District Court, Eastern District of California
Admitted: 1990

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