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About Mark
Practice Areas
4
Practice Areas
Criminal Defense
50%
DUI and DWI
25%
Violent Crime
15%
Sex Crime
10%
Fees and Rates
Awards
Licenses
Licensed in Arizona for 46 years
State: Arizona
Acquired: 1979
No misconduct found
Location
Mark S. Williams
(480) 345-1562
Fax
16515 S. 40th Street, Suite 107, Phoenix, AZ, 85048
markswilliamslaw.orgMark S. Williams's Reviews
Avvo Review Score
2 Client Reviews
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Practice Areas
What Clients Mention
Showing 1 - 2 of 2 reviews
Posted by anonymous | October 03, 2022 | Hired Attorney | Criminal Defense
2 is better than 10
Was able to get a likely 10 year sentence reduced to 2 years. We were able to negotiate fees, which weren't at all cheap. He had a respectable approach in the court room and was never late. Always professional.
Posted by anonymous | February 27, 2026 | Hired Attorney | Criminal Defense
THUMBS DOWN!!!
HE might as well have been my prosecutor and my prosecution should have been my lawyer because every plea he has offered me was absolutely terrible and two times on two different cases he offered me more time than the prosecution alone. he was very unreliable in the courtroom and getting in touch wit...
Mark S. Williams's Lawyer Endorsements
"Mark is a experienced attorney, dedicated professional and a great person to work with on a case, who gets great results for his clients. I fully endorse him."
"Mark is an excellent attorney. He is intelligent, thoughtful, fair minded and a skilled trial attorney. I strongly endorse him."
"I endorse this lawyer. Mark is an outstanding lawyer. I have referred several clients to him over the years and will continue to recommend him when someone needs a criminal defense attorney. I know I can recommend him and be confident that he will provide a through defense and put his knowledge of the law and the legal system to work for my client."
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Experience
Associations
Maricopa County Bar Association
Member
National Association of Criminal Defense Lawyers
Member
Education
1979
Arizona State University Sandra Day O'Connor College of Law
JD - Juris Doctor
1976
North Arizona University
BA - Bachelor of Arts