William Earl O'Nell, Appellate Attorney in San Diego, California
Over 30 years of legal practice · focused on Appellate, Business, and Car Accidents · 5.0/5 rating from 14 verified client reviews
MemberatThe Law Office of William E. O'Nell
San Diego, CA
Practicing appellate in San Diego since 1996.
- 30+
- Years practicing
- 5.0 ★
- 14 client reviews
- 3
- Bar admissions
Are you William Earl O'Nell?
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Quick answer
William Earl O'Nell is a member based in San Diego, CA. The practice focuses on Appellate, Business, and Car Accidents. William has over 30 years of legal experience. Currently practicing at The Law Office of William E. O'Nell. Rated 5.0 out of 5 from 14 client reviews.
- Based in
- San Diego, CA
- Experience
- over 30 years
- Known for
- Appellate · Business · Car Accidents
- Handles Appellate, Business, and Car Accidents matters from San Diego, CA.
- Over 30 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About William Earl O'Nell: William Earl O'Nell is a member based in San Diego, CA. The practice focuses on Appellate, Business, and Car Accidents. William has over 30 years of legal experience. Currently practicing at The Law Office of William E. O'Nell. Rated 5.0 out of 5 from 14 client reviews.
Areas of practice
Legal matters William takes on
William concentrates on appellate, business, car accidents, consumer, and employment. Each area below outlines the kind of case William handles, typical outcomes to expect, and how the intake process starts.
Appellate
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Business
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Car Accidents
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Consumer
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Employment
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General
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Insurance
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Litigation
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Personal Injury
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Product Liability
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Wrongful Death
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Appellate cases in San Diego, California
William takes appellate matters in San Diego, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before William agrees to represent you.
Business cases in San Diego, California
William takes business matters in San Diego, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before William agrees to represent you.
Car Accidents cases in San Diego, California
William takes car accidents matters in San Diego, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before William agrees to represent you.
Consumer cases in San Diego, California
William takes consumer matters in San Diego, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before William agrees to represent you.
Employment cases in San Diego, California
William takes employment matters in San Diego, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before William agrees to represent you.
Biography
Meet William Earl O'Nell — appellate lawyer in San Diego
William Earl O'Nell is a member based in San Diego, CA. The practice focuses on Appellate, Business, and Car Accidents. William has over 30 years of legal experience. Currently practicing at The Law Office of William E. O'Nell. Rated 5.0 out of 5 from 14 client reviews.
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.
William's approach to appellate cases
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.
Clients William works with
William reviews new inquiries case-by-case for appellate, business, and car accidents matters in San Diego and the surrounding California area.
Credentials
Education, bar admissions, and languages
University of San Diego School of Law
J.D. · 1996
University of California, San Diego
M.A. University · 1987
Jurisdictions
William's state bar admissions
U.S. District Court,
1999 · ACTIVE
U.S. District Court,
1996 · ACTIVE
California
1996 · ACTIVE
William studied at J.D. in University of San Diego School of Law and M.A. University in University of California, San Diego.
Law school and academic background
William completed J.D. in University of San Diego School of Law and M.A. University in University of California, San Diego. Formal legal training is one signal of substantive knowledge — the day-to-day practice William runs in California is where that training gets applied to real client questions.
Recognition
Recognition and thought leadership
William has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Affiliations
William's professional memberships and bar associations
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
membership
Locations
William Earl O'Nell's office in San Diego
William's primary office is at 101 West Broadway, Suite 810, San Diego, CA, 92101. In-person meetings are by appointment; a phone intake usually comes first.
The Law Office of William E. O'Nell
101 West Broadway, Suite 810
San Diego, CA 92101
Open in Google MapsClient feedback
Client reviews of William Earl O'Nell — 5.0/5 rating from 14 verified client reviews
Every review below is from a verified client of William. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing appellate attorneys in San Diego.
5.0
14 client reviews
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once William Earl O'Nell claims this profile.
Read all reviewsHiring guide
How to hire William Earl O'Nell — what to expect in your first consultation
Working with a new appellate attorney should feel structured. Here's how the first two conversations with William usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
William charges for the initial consult. That fee is credited toward representation if you retain William's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; William will tell you what matters and what doesn't.
Questions to ask a appellate attorney in San Diego, California
A short list to run through before you commit: How many appellate matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for William
William discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in appellate practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every appellate matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. William confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
William's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many appellate practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about William Earl O'Nell
How much does it cost to hire William for a appellate case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. William walks through the likely range during the consult so there are no surprises.
Does William offer a free consultation?
William charges for the initial consult; that fee is credited toward representation if you retain William's office. Some appellate attorneys offer free consults — check William's current terms during booking.
How long do appellate cases in California typically take?
Simple appellate matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. William gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can William take my case if I'm outside San Diego?
William is licensed in California. Matters governed by California law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — William will tell you if the case is a fit or refer you to someone closer to your court.
What should I bring to my first meeting with William?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. William will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is William accepting new appellate clients right now?
William's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Appellate attorneys serving San Diego, Los Angeles and San Francisco in California
William handles appellate matters throughout California. Each city below is a direct link into the search page for verified appellate attorneys in that community.
- San Diego16,903 attorneys
- Los Angeles39,975 attorneys
- San Francisco26,380 attorneys
- Sacramento10,561 attorneys
- Irvine6,831 attorneys
- Oakland5,709 attorneys
- San Jose5,009 attorneys
- Palo Alto4,084 attorneys
- Beverly Hills3,348 attorneys
- Newport Beach3,106 attorneys
- Pasadena2,894 attorneys
- Santa Monica2,756 attorneys
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