About

Based in Phoenix, Thomas W. Dean handles cannabis and marijuana law matters in Arizona. Dean earned a law degree from Cleveland State University Cleveland-Marshall College of Law and has 31 years in practice. Dean also works on cannabis DUI defense, where blood THC levels are a poor proxy for impairment at the time of driving and charges that survive legalization, including possession above the personal limit, unlicensed sale and cultivation beyond the permitted plant count.

Because Arizona has a regulated adult-use market as well as a medical program, cannabis practice there covers license applications and transfers, compliance audits and municipal approvals, as well as the charges that continue to attach to unlicensed sale and cultivation. The Arizona Department of Health Services administers the state program. It is a market where adult-use licenses were issued largely to existing medical operators, and social equity licensing has drawn litigation.

Credentials

Bar admissions
Languages
Law school
Cleveland State University Cleveland-Marshall College of Law
Years licensed
31
Listing reviewed
September 5, 2026

Office

2550 W. Union Hills Dr., Office Suite 350, Phoenix, AZ 85027
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Listings are compiled from public sources. They are not legal advice and not a recommendation of any attorney. A Verified listing means the attorney or firm confirmed the listing details. Not an endorsement.

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