Atty. John Owen Lanahan

Atty. John Owen Lanahan

John Owen Lanahan is a lawyer practicing criminal law, criminal defense, federal crime. John received a B.A. degree from University of Wisconsin-Madison in 1974, and has been licensed for 49 years.

San Diego San Diego 49 yrs experience 49 year
Call (858) 321-0949 Book Appointment

Profile Summary

About John Owen Lanahan at a glance

John Owen Lanahan is a Member based in San Diego, California, practicing at John Lanahan. They have 49+ years of legal experience, licensed to practice since 1977. Their practice focuses on criminal defense and federal crimes. Admitted to practice in Illinois (1977) and California (1988). Educated at University of Chicago (J.D., 1977) and University of Wisconsin-Madison (B.A., 1974). Recognitions include AV Preeminent. Active member of San Diego County Bar Association National Association of Criminal Defense Lawyers Criminal Lawyers Defenders Club, Criminal Defense Bar Association (Board Member), California Appellate Defense Counsel. Serands clients in San Diego, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Owen Lanahan is a lawyer practicing criminal law, criminal defense, federal crime
  • John received a B.A. degree from University of Wisconsin-Madison in 1974, and has been licensed for 49 years
  • John practices at John Lanahan in San Diego, CA

Practice Areas Explained

John Owen Lanahan's Areas of Practice

Each practice area below reflects the types of cases John Owen Lanahan 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 Owen Lanahan is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in California →

Federal Crimes

John Owen Lanahan is one of 6,773 federal crimes attorneys indexed nationally. Browse federal crimes 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 San Diego 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 San Diego or all attorneys in California.

Frequently Asked

Common questions about John Owen Lanahan

Where is John Owen Lanahan's law office located?
John Owen Lanahan's law practice is located in San Diego, California. The firm is John Lanahan. You can contact the office directly through this profile page.
What practice areas does John Owen Lanahan handle?
John Owen Lanahan focuses on criminal defense, federal crimes. Each practice area listed reflects experience handling cases of that type in California.
How long has John Owen Lanahan practiced law?
John Owen Lanahan has 49+ years of legal experience and has been licensed since 1977.
Where did John Owen Lanahan go to law school?
John Owen Lanahan earned their education at (J.D., 1977); (B.A., 1974).
How can I contact John Owen Lanahan for a consultation?
You can contact John Owen Lanahan 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 Owen Lanahan received?
John Owen Lanahan's notable recognition includes: AV Preeminent.

Education

J.D.
University of Chicago
- 1977
B.A.
University of Wisconsin-Madison
- 1974

Awards

AV Preeminent

Bar Admissions

Illinois
Admitted: 1977
California
Admitted: 1988

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