Atty. William Earl O'Nell

Atty. William Earl O'Nell

William Earl O'Nell is a lawyer practicing insurance, business litigation, personal injury and 11 other areas of law. William received a M.A. degree from University of California, San Diego in 1987, and has been licensed for 30 years.

San Diego San Diego 30 yrs experience 30 year
Call (640) 230-5254 Book Appointment

Profile Summary

About William Earl O'Nell at a glance

William Earl O'Nell is a Member based in San Diego, California, practicing at The Law Office of William E. O'Nell. They have 30+ years of legal experience, licensed to practice since 1996. Their practice focuses on car accidents, wrongful death, personal injury, employment, and business. Admitted to practice in California (1996), U.S. District Court, Southern District of California (1996), and U.S. District Court, Central District of California (1999). Educated at University of San Diego School of Law (J.D., 1996) and University of California, San Diego (M.A. University, 1987). Recognitions include AV Preeminent. Active member of State Bar of California San Diego County Bar Association Association of Business Trial Lawyers Consumer Attorneys of San Diego Consumer Attorneys of California American Bar Association. Serands clients in San Diego, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Earl O'Nell is a lawyer practicing insurance, business litigation, personal injury and 11 other areas of law
  • William received a M.A. degree from University of California, San Diego in 1987, and has been licensed for 30 years
  • William practices at The Law Office of William E. O'Nell in San Diego, CA

Practice Areas Explained

William Earl O'Nell's Areas of Practice

Each practice area below reflects the types of cases William Earl O'Nell handles, with a brief overview of what that area of law covers.

Car Accidents

Hurt in a car crash? Car accident lawyers fight insurance companies for fair compensation — free consult, no fee unless you win.

William Earl O'Nell is one of 36,807 car accidents attorneys indexed nationally. Browse car accidents attorneys in California →

Wrongful Death

William Earl O'Nell is one of 31,253 wrongful death attorneys indexed nationally. Browse wrongful death attorneys in California →

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

William Earl O'Nell is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in California →

Employment Law

Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.

William Earl O'Nell is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in California →

Business & Corporate Law

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

William Earl O'Nell is one of 501,317 business attorneys indexed nationally. Browse business 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 William Earl O'Nell

Where is William Earl O'Nell's law office located?
William Earl O'Nell's law practice is located in San Diego, California. The firm is The Law Office of William E. O'Nell. You can contact the office directly through this profile page.
What practice areas does William Earl O'Nell handle?
William Earl O'Nell focuses on car accidents, wrongful death, personal injury, employment, business. Each practice area listed reflects experience handling cases of that type in California.
How long has William Earl O'Nell practiced law?
William Earl O'Nell has 30+ years of legal experience and has been licensed since 1996.
Where did William Earl O'Nell go to law school?
William Earl O'Nell earned their education at (J.D., 1996); (M.A. University, 1987).
How can I contact William Earl O'Nell for a consultation?
You can contact William Earl O'Nell 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 William Earl O'Nell received?
William Earl O'Nell's notable recognition includes: AV Preeminent.

Education

J.D.
University of San Diego School of Law
- 1996
M.A. University
University of California, San Diego
- 1987

Awards

AV Preeminent

Bar Admissions

California
Admitted: 1996
U.S. District Court, Southern District of California
Admitted: 1996
U.S. District Court, Central District of California
Admitted: 1999

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