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.
Criminal Defense & More Attorney · Serving Phoenix, AZ · 29+ Years Experience
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.
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About 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
- 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 Legal Practice
Each practice area below reflects the types of cases James E. Simpson handles, with a practical overview of what that area of law involves and how it may apply to your situation in Phoenix.
Drug Crimes in Phoenix
James E. Simpson is one of 6,914 drug crimes attorneys indexed nationally. Browse drug crimes attorneys in Arizona →
Criminal Defense in Phoenix
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 212,605 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Arizona →
Federal Crimes in Phoenix
James E. Simpson is one of 6,716 federal crimes attorneys indexed nationally. Browse federal crimes attorneys in Arizona →
White Collar Crimes in Phoenix
James E. Simpson is one of 19,824 white collar attorneys indexed nationally. Browse white collar attorneys in Arizona →
Sex Crimes in Phoenix
James E. Simpson is one of 5,296 sex crimes attorneys indexed nationally. Browse sex crimes attorneys in Arizona →
Jurisdictional Context
Why Local Counsel Matters in Phoenix
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.
Phoenix Courts and Legal Process
Choosing a Phoenix-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Arizona attorneys? Browse all attorneys in Phoenix or all attorneys in Arizona.
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Professional Profile
Why Clients in Phoenix Choose James E. Simpson
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish James E. Simpson's practice in the field of drug crimes, criminal defense, federal crimes, white collar, and sex crimes.
Decade-Tested Legal Experience
James E. Simpson brings 29+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Broad Practice Area Coverage
Covering drug crimes, criminal defense, and federal crimes, James E. Simpson can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Phoenix
A Phoenix-based practice means James E. Simpson attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
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