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Zachary Thornley

Criminal defense Attorney at Phoenix, AZ

5.0   2 reviews
  • Licensed for 8 years
    State AZ
    Acquired 2015
    Active No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Zachary

Learn Zachary’s areas of practice.

Mr. Thornley is extremely well versed in both Criminal Law and Real Estate Law.

Mr. Thornley is a successful trial attorney in Phoenix Arizona. He spent years working for a large corporate defense firm. His experience was invaluable; however, he personally believes representation is more effective in a more personal environment where individual attention is on the client and not on the firm’s bottom dollar.

Mr. Thornley has earned a reputation for successful representation of clients in a range of criminal matters. He has effectively guided clients through some of the most serious crimes including manslaughter and serious sex crimes. His representation of clients has included those facing misdemeanors up to serious felonies with possible life sentences. Mr. Thornley’s extensive practice includes first chair trial experience in court rooms throughout the State of Arizona.

Over the years, Mr. Thornley’s training and understanding of law enforcement practices has led clients through sensitive government investigations. He has extensive experience with law enforcement agencies throughout the State of Arizona and dissecting issues that arise when law enforcement fails to conduct a thorough and ethical investigation.

Mr. Thornley has successfully resolved a number if significantly serious felonies and has persuaded authorities not to pursue charges. Mr. Thornley has been effective in aggressively pursuing his client’s rights when a case is charged.

Mr. Thornley has also been effective in representation of clients facing probation violations and restitution issues. In issues involving serious Sex crimes he has helped clients avoid lifetime probation and registration. Mr. Thornley has been successful in obtaining dismissals in many misdemeanor cases involving charges such as assault, disorderly conduct, criminal damage and domestic violence cases.

Inevitably, when clients face charges for a crime or crimes they did not commit, Mr. Thornley has shown to be effective and aggressive in pursuing a not guilty outcome and in many instances have received directed verdicts when the state has failed to live up to their burden.

In his very first jury trial, Mr. Thornley represented a client who was facing Life in Prison. Mr. Thornley’s client was acquitted of all counts after a 3-week trial.

During his time in law school, Mr. Thornley interned with Prosecutors in Gila Counties Dangerous Drugs division as well as with prosecutors of Avondale, Tolleson, and Buckeye where he prosecuted cases as an Arizona Supreme Court Certified Student.

Mr. Thornley is licensed to practice in every court in the State of Arizona including the Federal District of Arizona.

Mr. Thornley is also admitted Pro Hac Vice in the Washington DC Federal District Court.

Mr. Thornley is a member with the DUI Defense Lawyers Association.

We are happy to sit down for a free consultation to discuss how we can fight for you!

Don’t wait to call! When your life is on the line and so much is at stake, Thornley Law Firm can help relieve a stressful and terrifying situation.

Mr. Thornley has also held an active Real Estate License since 2013. He has been party to millions in purchases and sales. He has extensive experience in real estate transactions and has the expertise to know where and when problems may arise. Mr. Thornley also has experience with Home Owner’s Associations and the problems that may arise when dealing with these entities. Mr. Thornley has also assisted in property disputes and has assisted in successfully resolving a variety of property dispute issues.

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Thornley Law Firm
18441 N 25th Ave
Ste. 103
Phoenix, AZ, 85023

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5.0 / 5.0
  2 customer reviews
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1 Star
Posted by Diane | January 28, 2023
This review is from a potential client who consulted with this attorney.
| Consulted Attorney
Zack responded to my particular needs in an efficient manner. He listened to me and explained what he felt would be the best solution. I will definitely refer him to family and associates!
Posted by anonymous | March 3, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Very dedicated
We got to work with Zach on a legal case for my son.. we had previously worked with 2 other Attorney’s for over a year and half and got more information and advice from Zach in less then a couple of days then two other attorneys did in a year.. I wish we had got the opportunity to work with him early.
Response from Zachary Thornley May 12, 2021
Thank you so much! I pride myself and my practice on treating clients as if they were my own family.


  • Free Consultation 30 minutes
Payment methods
Cash, Credit Card


AVVO RATING 6.3 (Good)

Work Experience

  • Trial Attorney
  • Thornley Law Firm, P.C.
  • 2021 - Present


  • Phoenix School of Law
  • JD
  • 2014

Sample of Legal Cases

  • Hindering the prosecution
  • Not Guilty on all Counts


  • DUI Defense Lawyers Association
  • Member
  • 2018 - Present

Languages Spoken

  • Spanish


  • North Phoenix News
  • Dog Bites
  • 2023

Attorney endorsements

Received (2)
Given (3)
Endorse Zachary
Criminal defense Attorney | May 17
Relationship: Co-worker
"I've had the pleasure of working alongside Mr. Thornley for several years. He is an excellent attorney, an aggressive advocate, and a thoughtful counselor to his clients."
Criminal defense Attorney | Mar 09
Relationship: Fellow lawyer in community
"Mr. Thornley is an extremely hardworking and dedicated attorney who works tirelessly for his clients. I happily endorse him without reservations."
Criminal defense
Personal injury
Criminal defense
Phoenix Criminal defense Lawyer Zachary Thornley
Zachary Thornley
Criminal defense Attorney
Phoenix, AZ
Licensed for 8 years
Free Consultation