Close X

Sean Chapman Law

Call: (520) 226-0264
Asistencia en Español

Sean Chapman

Sean 20chapman 20profile 20thumbnail

Over the last 25 years, Sean C. Chapman has earned a reputation as a highly skilled, effective, and honest trial attorney in Arizona.  He has won some of the most significant high profile cases in Tucson in the last decade (see “Notable Cases” page on this website). As a federal prosecutor from 1997 to 2004, he was responsible for the trial and convictions of corrupt law enforcement officials and violent criminals.  As a defense attorney, he has tried and won several significant cases including two cases where U.S. Border Patrol agents were wrongly charged with murder.

Given his extensive trial experience, Mr. Chapman is frequently asked to speak at law school classes and at various seminars regarding aspects of state and federal trial practice.

Mr. Chapman has received numerous awards as a result of his work as a trial lawyer.  He is an AV rated lawyer under Martindale Hubbell's rating system indicating that other lawyers agree that he has achieved the highest level of legal ability and professional ethics.

Areas of Practice:

  • Arizona and Federal Criminal Defense
  • Drug Offenses
  • Theft and Property Crimes
  • Fraud, Embezzlement, Scams and Internet Crimes
  • Racketeering and RICO Act Offenses
  • Conspiracy
  • Violent Crimes and Murder
  • Federal Murder Cases
  • Personal Injury, Medical Malpractice and Wrongful Death Claims
  • Criminal Law
  • White Collar Crimes

Bar Admissions:

  • Arizona, 1988
  • U.S. District Court District of Arizona, 1988
  • U.S. Court of Appeals 9th Circuit, 1988


  • University of Arizona College of Law, Tucson, Arizona, 1988
    J.D. | Honors: Cum Laude
    Law Review: Arizona Law Review, Member, 1987 – 1988
  • University of Arizona, Tucson, Arizona, 1984

Published Works:

  • Batson v. Kentucky: A Significant Step Toward Eliminating Discrimination In The Jury Selection Process, Arizona Law Review, 29 Ariz. L.Rev. 697, 1987

Classes/Seminars Taught:

  • Guest Panelist: Federal Discovery Panel, University of Arizona College of Law, 2008
  • Guest Lecturer: How a Defense Attorney Analyzes a Federal Case, University of Arizona College of Law, 2008
  • Guest Lecturer: “Victims Rights and Witness Advocacy in the Federal Courts”, University of Arizona College of Law, 2007
  • Guest Lecturer: “Victims Rights and Witness Advocacy in the Federal Courts”, University of Arizona College of Law, 2006
  • Guest Lecturer: “Federal Death Penalty Proceedings”, University of Arizona College of Law, 2005
  • Speaker: “Federal Criminal Practice”, Pima County Bar Association, March 21, 2005
  • Speaker: Federal Sentencing Guidelines Seminar, Federal Bar Association, March 23, 2003
  • Speaker: Federal Criminal Procedure Seminar, United States Attorneys Office, District of Arizona, May 16, 2001

Honors and Awards:

  • National Prosecutor of the Year, Federal Law Enforcement Officers Association, 2004
  • Office of Inspector General Award, “Outstanding Prosecution of Corruption within the United States Department of Justice”, 2002
  • Department of Justice Director's Award for “Superior Performance as an Assistant United States Attorney”, 2001
  • Public Service Award, Blue Cross/Blue Shield of Arizona for “Exceptional Contributions to Federal Service in the State of Arizona”

Professional Associations and Memberships:

  • Federal Bar Association
  • Pima County Bar Association
  • Tucson Defense Bar
  • Arizona Attorneys for Criminal Justice
  • State Bar of Arizona
  • National Association of Criminal Defense Attorneys

Past Employment Positions:

  • U.S. Attorney's Office for the District of Arizona
  • Chandler and Udall, P.C.
  • Pima Public Defender
  • Jennings, Strouss and Salmon, LLC

Ancillary Businesses:

  • Panel Attorney: PORAC Legal Defense Fund

Recent Blog Posts


  • Worked for Sean Chapman

    Mr. Chapman brings twenty-five years of criminal law experience to every case. He uses his broad knowledge base, strong writing skills, oral advocacy and effective communication skills to achieve the best result for his clients, whether that means litigating the matter in court or reaching a nego...
  • Worked together on a legal matter

    Sean has a proven track record of success in defending law enforcement agents and others against serious charges including murder. As a former federal prosecutor, Sean has the ability to see his cases from both sides and to anticipate the claims and tactics of opposing counsel. Sean is smart, cal...
  • Don't worry about the case, that's my job to worry for you.

    I am writing you this because of our appreciation of your hard work, knowledge and professionalism. With confidence we can say you literally saved our family. In the late spring of 2013 when my wife was charged with numerous counts, we didn’t know what to do or where to go. We were angry, con...
  • Arson Defense

    Sean Chapman served as my defense attorney for two years and was responsible for saving me from a horrible fate. Having been wrongly indicted for arson of an occupied structure, I was prosecuted by the State with the assistance of the ATF. While arson was not Sean’s specialty, he researched the s...
  • I thank Mr. Chapman so very much from the depths of my heart...

    Mr. Chapman represented my daughter in a drug case in 2008. She received 5 years probation and no jail time as a result of his work. His work was not in vain. True story and a funny part of our first meeting of Mr. Chapman: The first day when all public defenders were initially meeting with th...
  • A Tucson Super Lawyer

    When I was FALSELY accused of a sex crime with a minor, I could not have been more fortunate to find such a superb lawyer team working on my behalf. Sean Chapman, being one of the attorneys on my case, worked for over two years, diligently through every detail and meticulously created an outstand...
  • Mr. Chapman is our superhero!

    July 29, 2015 Like many other people with a legal problem, I once desperately looked for an attorney. I was in search of an honest attorney because the matter at stake involved one of the most important persons in my life, my mother. My mother was facing felony charges, not one or two, but s...
  • Very Appreciative for Your Representation

    Sean, I want to thank you again for your services regarding my incident in Tucson. Due to you, the results of the case were minimized more than I ever imagined them to be. Without your presence, I highly doubt I would be where I am today. I am very appreciative for your representation.
  • I Strongly Recommend Sean Chapman As a Criminal Defense Attorney

    I met Criminal Attorney Sean Chapman around the summer of 2011. I had been indictment on three counts of false information. At the time of the indictment, I was suspended from my position as a Border Patrol Agent. I had heard of Mr. Chapman's reputation from his ten years of service with the Depa...
  • Worked together on a legal matter

    Unparalleled is a term I would use to describe Sean Chapman's legal skills. I have known him for a decade and have done several cases with him. He has built an unblemished reputation as an exceptional criminal defense lawyer. His remarkable successes as a trial lawyer are based upon preparation, ...
  • We would recommend him to anyone needing legal counsel!

    Attorney at Law Sean Chapman was essential in our defense. He helped us every step of the way understand what all the possibilities were and what our options were. Thankfully, he never sugar coated anything either. He made sure we fully understand what could happen so we could make the best decis...
Go to Top