
Mark S. Williams, Criminal Defense Attorney in Phoenix, Arizona
Over 47 years of legal practice · focused on Criminal Defense, Drug Crimes, and DUI/DWI · 5.0/5 rating from 1 verified client review
MemberatMark S Williams
Phoenix, AZ
Practicing criminal defense in Phoenix since 1979.
- 47+
- Years practicing
- 5.0 ★
- 1 client review
- 2
- Bar admissions
Are you Mark S. Williams?
This profile was built from public bar records and is still unclaimed. Claim it free to control your photo, bio, and fees — and get client inquiries sent straight to you.
Quick answer
Mark S. Williams is a member based in Phoenix, AZ. The practice focuses on Criminal Defense, Drug Crimes, and DUI/DWI. Mark has over 47 years of legal experience. Currently practicing at Mark S Williams. Rated 5.0 out of 5 from 1 client review.
- Based in
- Phoenix, AZ
- Experience
- over 47 years
- Known for
- Criminal Defense · Drug Crimes · DUI/DWI
- Handles Criminal Defense, Drug Crimes, and DUI/DWI matters from Phoenix, AZ.
- Over 47 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Mark S. Williams: Mark S. Williams is a member based in Phoenix, AZ. The practice focuses on Criminal Defense, Drug Crimes, and DUI/DWI. Mark has over 47 years of legal experience. Currently practicing at Mark S Williams. Rated 5.0 out of 5 from 1 client review.
Areas of practice
Mark's practice areas in Phoenix
Mark concentrates on criminal defense, drug crimes, dui/dwi, general, and sex crimes. Each area below outlines the kind of case Mark handles, typical outcomes to expect, and how the intake process starts.
Criminal Defense
View other Criminal Defense attorneys
Drug Crimes
View other Drug Crimes attorneys
DUI/DWI
View other DUI/DWI attorneys
General
View other General attorneys
Sex Crimes
View other Sex Crimes attorneys
Theft
View other Theft attorneys
Traffic
View other Traffic attorneys
Criminal Defense cases in Phoenix, Arizona
Mark takes criminal defense matters in Phoenix, Arizona. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Drug Crimes cases in Phoenix, Arizona
Mark takes drug crimes matters in Phoenix, Arizona. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
DUI/DWI cases in Phoenix, Arizona
Mark takes dui/dwi matters in Phoenix, Arizona. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
General cases in Phoenix, Arizona
Mark takes general matters in Phoenix, Arizona. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Sex Crimes cases in Phoenix, Arizona
Mark takes sex crimes matters in Phoenix, Arizona. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.
Biography
Mark S. Williams, criminal defense attorney serving Phoenix
Mark S. Williams is a member based in Phoenix, AZ. The practice focuses on Criminal Defense, Drug Crimes, and DUI/DWI. Mark has over 47 years of legal experience. Currently practicing at Mark S Williams. Rated 5.0 out of 5 from 1 client review. Mark works from Phoenix, Arizona and takes on criminal defense matters across the region.
Attorney and Arizona native Mark S. Williams has been providing quality criminal defense representation for over 25 years, representing clients in the greater Phoenix metro area and throughout the state of Arizona. This Arizona State University School of Law graduate and former Prosecutor handles both misdemeanor and felony cases. He believes strongly that every person accused of committing a criminal offense deserves thorough and professional legal advocacy and thoughtful representation in court.
Working with Mark on a criminal defense matter
Attorney and Arizona native Mark S. Williams has been providing quality criminal defense representation for over 25 years, representing clients in the greater Phoenix metro area and throughout the state of Arizona. This Arizona State University School of Law graduate and former Prosecutor handles both misdemeanor and felony cases. He believes strongly that every person accused of committing a…
Clients Mark works with
Mark reviews new inquiries case-by-case for criminal defense, drug crimes, and dui/dwi matters in Phoenix and the surrounding Arizona area.
Credentials
Credentials — where Mark studied and practices
Arizona State University
J.D. · 1979
North Arizona University
B.A. · 1976
Jurisdictions
Mark's state bar admissions
Arizona
1979 · ACTIVE
U.S. District Court,
1979 · ACTIVE
Mark studied at J.D. in Arizona State University and B.A. in North Arizona University.
Law school and academic background
Mark completed J.D. in Arizona State University and B.A. in North Arizona University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Mark runs in Arizona is where that training gets applied to real client questions.
Recognition
Mark's legal honors and published work
Mark has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Affiliations
Mark's professional memberships and bar associations
Maricopa County Bar Association State Bar of Arizona National Association of Criminal Defense Lawyers
membership
Locations
Mark S. Williams's office in Phoenix
Mark's primary office is at 16515 S. 40th Street, Suite 107, Phoenix, AZ, 85048. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Mark S. Williams — 5.0/5 rating from 1 verified client review
Every review below is from a verified client of Mark. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing criminal defense attorneys in Phoenix.
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Mark S. Williams claims this profile.
Read all reviewsHiring guide
How to hire Mark S. Williams — 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 Mark usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Mark charges for the initial consult. That fee is credited toward representation if you retain Mark'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; Mark will tell you what matters and what doesn't.
Questions to ask a criminal defense attorney in Phoenix, Arizona
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 Mark
Mark 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. Mark confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Mark'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 Mark S. Williams
How much does it cost to hire Mark for a criminal defense case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Mark walks through the likely range during the consult so there are no surprises.
Does Mark offer a free consultation?
Mark charges for the initial consult; that fee is credited toward representation if you retain Mark's office. Some criminal defense attorneys offer free consults — check Mark's current terms during booking.
How long do criminal defense cases in Arizona 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. Mark gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Mark take my case if I'm outside Phoenix?
Mark is licensed in Arizona. Matters governed by Arizona law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Mark 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 Mark?
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. Mark will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Mark accepting new criminal defense clients right now?
Mark'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 Phoenix, Tucson and Scottsdale in Arizona
Mark handles criminal defense matters throughout Arizona. 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 Arizona
If Mark's intake is full or the fit isn't right, these criminal defense attorneys in Phoenix handle similar matters. Every profile below is verified and open to consultations.





