
William M Barnwell, Criminal Defense Attorney in Warren, Michigan
Over 11 years of legal practice · focused on Criminal Defense, DUI/DWI, and General · 5.0/5 rating from 16 verified client reviews
MemberatBarnwell Law, PLLC
Warren, MI
Practicing criminal defense in Warren since 2015.
- 11+
- Years practicing
- 5.0 ★
- 16 client reviews
- 2
- Bar admissions
Practices in
Are you William M Barnwell?
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Quick answer
William M Barnwell is a member based in Warren, MI. The practice focuses on Criminal Defense, DUI/DWI, and General. William has over 11 years of legal experience. Currently practicing at Barnwell Law, PLLC. Rated 5.0 out of 5 from 16 client reviews.
- Based in
- Warren, MI
- Experience
- over 11 years
- Known for
- Criminal Defense · DUI/DWI · General
- Handles Criminal Defense, DUI/DWI, and General matters from Warren, MI.
- Over 11 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About William M Barnwell: William M Barnwell is a member based in Warren, MI. The practice focuses on Criminal Defense, DUI/DWI, and General. William has over 11 years of legal experience. Currently practicing at Barnwell Law, PLLC. Rated 5.0 out of 5 from 16 client reviews.
Areas of practice
Legal matters William takes on
William concentrates on criminal defense, dui/dwi, general, and sex crimes. Each area below outlines the kind of case William handles, typical outcomes to expect, and how the intake process starts.
Criminal Defense
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DUI/DWI
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General
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Sex Crimes
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Criminal Defense cases in Warren, Michigan
William takes criminal defense matters in Warren, Michigan. 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.
DUI/DWI cases in Warren, Michigan
William takes dui/dwi matters in Warren, Michigan. 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.
General cases in Warren, Michigan
William takes general matters in Warren, Michigan. 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.
Sex Crimes cases in Warren, Michigan
William takes sex crimes matters in Warren, Michigan. 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 M Barnwell — criminal defense lawyer in Warren
William M Barnwell is a member based in Warren, MI. The practice focuses on Criminal Defense, DUI/DWI, and General. William has over 11 years of legal experience. Currently practicing at Barnwell Law, PLLC. Rated 5.0 out of 5 from 16 client reviews.
William M Barnwell is a lawyer practicing sex crimes, dui, criminal law and 1 other area of law. William received a B.A. degree from Bethel College in 2003, and has been licensed for 11 years. William practices at Barnwell Law, PLLC in Warren, MI.
William's approach to criminal defense cases
William M Barnwell is a lawyer practicing sex crimes, dui, criminal law and 1 other area of law. William received a B.A. degree from Bethel College in 2003, and has been licensed for 11 years. William practices at Barnwell Law, PLLC in Warren, MI.
The kind of cases William takes
William reviews new inquiries case-by-case for criminal defense, dui/dwi, and general matters in Warren and the surrounding Michigan area.
Credentials
Education, bar admissions, and languages
Western Michigan University, Thomas M. Cooley Law School
J.D. · 2015
Bethel College
B.A. Social · 2003
Jurisdictions
William's state bar admissions
Florida
2021 · ACTIVE
Michigan
2015 · ACTIVE
William studied at J.D. in Western Michigan University, Thomas M. Cooley Law School and B.A. Social in Bethel College.
Law school and academic background
William completed J.D. in Western Michigan University, Thomas M. Cooley Law School and B.A. Social in Bethel College. Formal legal training is one signal of substantive knowledge — the day-to-day practice William runs in Michigan 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.
Locations
William M Barnwell's office in Warren
William's primary office is at 30130 Gruenburg Drive, Warren, MI, 48092-3361. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of William M Barnwell — 5.0/5 rating from 16 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 criminal defense attorneys in Warren.
5.0
16 client reviews
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once William M Barnwell claims this profile.
Read all reviewsHiring guide
How to hire William M Barnwell — 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 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 criminal defense attorney in Warren, Michigan
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 William
William 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. 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 criminal defense practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about William M Barnwell
How much does it cost to hire William for a criminal defense 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 criminal defense attorneys offer free consults — check William's current terms during booking.
How long do criminal defense cases in Michigan 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. 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 Warren?
William is licensed in Michigan. Matters governed by Michigan 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 criminal defense 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
Criminal Defense attorneys serving Warren, Detroit and Grand Rapids in Michigan
William handles criminal defense matters throughout Michigan. Each city below is a direct link into the search page for verified criminal defense attorneys in that community.
More counsel
Other top-rated criminal defense attorneys in Michigan
If William's intake is full or the fit isn't right, these criminal defense attorneys in Warren handle similar matters. Every profile below is verified and open to consultations.





