Warren Ko, Criminal Defense Attorney in San Francisco, California
Over 17 years of legal practice
San Francisco, CA
Practicing criminal defense in San Francisco since 2009.
- 17+
- Years practicing
- 1
- Bar admission
Practices in
Are you Warren Ko?
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Quick answer
Warren Ko is an attorney based in San Francisco, CA. The practice focuses on Criminal Defense. Warren has over 17 years of legal experience.
- Based in
- San Francisco, CA
- Experience
- over 17 years
- Known for
- Criminal Defense
- Handles Criminal Defense matters from San Francisco, CA.
- Over 17 years of practice as a licensed attorney.
About Warren Ko: Warren Ko is an attorney based in San Francisco, CA. The practice focuses on Criminal Defense. Warren has over 17 years of legal experience.
Areas of practice
Practice areas handled by Warren Ko
Warren concentrates on criminal defense. Each area below outlines the kind of case Warren handles, typical outcomes to expect, and how the intake process starts.
Criminal Defense cases in San Francisco, California
Warren takes criminal defense matters in San Francisco, 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 Warren agrees to represent you.
Biography
About Warren Ko — Over 17 years of California criminal defense experience
Warren Ko is an attorney based in San Francisco, CA. The practice focuses on Criminal Defense. Warren has over 17 years of legal experience.
Warren Ko is a lawyer practicing criminal law. Warren received a degree from UC Berkeley SOL Boalt Hall, Berkeley, CA, and has been licensed for 17 years. Warren practices in San Francisco, CA.
Working with Warren on a criminal defense matter
Warren Ko is a lawyer practicing criminal law. Warren received a degree from UC Berkeley SOL Boalt Hall, Berkeley, CA, and has been licensed for 17 years. Warren practices in San Francisco, CA.
Clients Warren works with
Warren reviews new inquiries case-by-case for criminal defense matters in San Francisco and the surrounding California area.
Credentials
Warren Ko's legal education and bar admissions
UC Berkeley SOL Boalt Hall, Berkeley, CA Stanford Univ, Stanford, CA
—
Jurisdictions
Warren's state bar admissions
California
2009 · ACTIVE
Warren studied at — in UC Berkeley SOL Boalt Hall, Berkeley, CA Stanford Univ, Stanford, CA.
Law school and academic background
Warren completed — in UC Berkeley SOL Boalt Hall, Berkeley, CA Stanford Univ, Stanford, CA. Formal legal training is one signal of substantive knowledge — the day-to-day practice Warren runs in California is where that training gets applied to real client questions.
Locations
Warren Ko's office in San Francisco
Warren's primary office is at 350 Rhode Island St Ste 400 N, San Francisco, CA, 94103-5182. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Warren Ko
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Schedule your consultationHiring guide
How to hire Warren Ko — what to expect in your first consultation
Working with a new criminal defense attorney should feel structured. Here's how the first two conversations with Warren usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Warren charges for the initial consult. That fee is credited toward representation if you retain Warren'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; Warren will tell you what matters and what doesn't.
Questions to ask a criminal defense attorney in San Francisco, California
A short list to run through before you commit: How many criminal defense 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 Warren
Warren discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in criminal defense practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every criminal defense 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. Warren confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Warren's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many criminal defense practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Warren Ko
How much does it cost to hire Warren for a criminal defense case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Warren walks through the likely range during the consult so there are no surprises.
Does Warren offer a free consultation?
Warren charges for the initial consult; that fee is credited toward representation if you retain Warren's office. Some criminal defense attorneys offer free consults — check Warren's current terms during booking.
How long do criminal defense cases in California typically take?
Simple criminal defense 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. Warren gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Warren take my case if I'm outside San Francisco?
Warren 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 — Warren 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 Warren?
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. Warren will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Warren accepting new criminal defense clients right now?
Warren's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Criminal Defense attorneys serving San Francisco, Los Angeles and San Diego in California
Warren handles criminal defense matters throughout California. Each city below is a direct link into the search page for verified criminal defense attorneys in that community.
- San Francisco26,380 attorneys
- Los Angeles39,975 attorneys
- San Diego16,903 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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