Atty. James E. Simpson

Atty. James E. Simpson

ames Simpson, a distinguished criminal defense attorney at MayesTelles PLLC, brings a wealth of legal experience and a steadfast commitment to advocating for his clients' rights. Originally from San Diego, California, James earned his bachelor’s degree in Political Science from California Lutheran University before obtaining his Juris Doctorate from the Quinnipiac University School of Law in Hamden, Connecticut, in 1997.

Phoenix Phoenix 29 Years Experience 29 year
Call (480) 916-3636

Profile Summary

About James E. Simpson at a glance

James E. Simpson is an Attorney based in Phoenix, Arizona, practicing at Mayestelles Pllc. They have 29+ years of legal experience, licensed to practice since 1997. Their practice focuses on drug crimes, criminal defense, federal crimes, white collar, and sex crimes. Admitted to practice in Arizona (1997). Educated at Quinnipiac University School of Law (J.D., 1997) and California Lutheran University B.A. Political Science (—). Serves clients in Phoenix, AZ and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • ames Simpson, a distinguished criminal defense attorney at MayesTelles PLLC, brings a wealth of legal experience and a steadfast commitment to advocating for his clients' rights
  • Originally from San Diego, California, James earned his bachelor’s degree in Political Science from California Lutheran University before obtaining his Juris Doctorate from the Quinnipiac University School of Law in Hamden, Connecticut, in 1997
  • He then relocated to Arizona to embark on his legal career
  • James commenced his professional journey as a prosecutor at the Maricopa County Attorney’s Office, where he served in the Major Crimes Division, notably in the Sex Crimes Unit and Gang Unit, earning numerous recognition awards for his exceptional work
  • His dedication to justice led him to further roles as a High Intensity Drug Trafficking Area (HIDTA) prosecutor at the Arizona Attorney General’s Office and as a prosecutor and Bureau Chief at the Pinal County Attorney’s Office
  • With nearly two decades of combined experience as both a prosecutor and a defense attorney, James has handled a diverse array of cases, ranging from DUIs to complex, major felony cases
  • His extensive trial experience and comprehensive understanding of the legal system uniquely position him to effectively advocate for his clients and safeguard their rights
  • James now channels his wealth of knowledge and skill into his role as a criminal defense attorney at MayesTelles, where he remains dedicated to providing personalized and zealous representation for each client he serves

Practice Areas Explained

James E. Simpson's Areas of Practice

Each practice area below reflects the types of cases James E. Simpson handles, with a brief overview of what that area of law covers.

Drug Crimes

James E. Simpson is one of 6,336 drug crimes attorneys indexed nationally. Browse drug crimes attorneys in Arizona →

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

James E. Simpson is one of 190,900 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Arizona →

Federal Crimes

James E. Simpson is one of 6,117 federal crimes attorneys indexed nationally. Browse federal crimes attorneys in Arizona →

White Collar Crimes

James E. Simpson is one of 18,196 white collar attorneys indexed nationally. Browse white collar attorneys in Arizona →

Sex Crimes

James E. Simpson is one of 4,747 sex crimes attorneys indexed nationally. Browse sex crimes attorneys in Arizona →

Jurisdictional Context

Why local counsel matters in Arizona

Practicing law in Arizona. Legal matters in Arizona are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Phoenix are typically filed in the local municipal court or the appropriate Arizona state district court, depending on subject matter and amount in controversy. An attorney licensed in Arizona brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Arizona courts without local counsel or pro hac vice admission.

Looking for additional Arizona attorneys? Browse all attorneys in Phoenix or all attorneys in Arizona.

Frequently Asked

Common questions about James E. Simpson

Where is James E. Simpson's law office located?
James E. Simpson's law practice is located in Phoenix, Arizona. The firm is Mayestelles Pllc. You can contact the office directly through this profile page.
What practice areas does James E. Simpson handle?
James E. Simpson focuses on drug crimes, criminal defense, federal crimes, white collar, sex crimes. Each practice area listed reflects experience handling cases of that type in Arizona.
How long has James E. Simpson practiced law?
James E. Simpson has 29+ years of legal experience and has been licensed since 1997.
Where did James E. Simpson go to law school?
James E. Simpson earned their education at (J.D., 1997); (—).
How can I contact James E. Simpson for a consultation?
You can contact James E. Simpson directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

J.D.
Quinnipiac University School of Law
- 1997
California Lutheran University B.A. Political Science
- In Progress

Bar Admissions

Arizona
Admitted: 1997

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