Orange County Criminal Defense Lawyer

Mr. Hartmann is a “certified specialist” in criminal law, and is the founder and owner of the Hartmann Law Firm, a criminal defense law firm practicing in Orange County. California attorneys certified as specialists such as Mr. Hartmann must pass a written examination in their specialty field, demonstrate a high level of experience in the specialty field, fulfill ongoing education requirements and are favorably evaluated by other attorneys and judges familiar with their work.

Mr. Hartmann has been practicing criminal law since 1987. The Firm is aware of the unique needs of those facing, or about to face, criminal charges, and their families. That is why he can almost always arrange a same day free initial consultation, explain how bail works, and provide his truthful views about the case. “Truthful” is emphasized because clients often lament that attorneys told them what they wanted to hear to get the fee. Rather, Mr. Hartmann tells prospective clients what they need to hear, and what he can realistically do to help them.

Mr. Hartmann is an experienced trial attorney, having completed over 150 trials to jury verdicts, with multiple “not guilty verdicts” and split verdicts that resulted in favorable outcomes for the client, and other verdicts that led to favorable sentences. He has completed over 1000 preliminary hearings and thousands of pretrial hearings/negotiations. He has also completed over 50 juvenile court trials to verdict.

After passing the bar in 1987, Mr. Hartmann for a short time worked with the respected civil firm of Murtaugh, Miller, Meyer & Nelson in Orange California. He moved to the Orange County District Attorney’s Office and became a Deputy District Attorney based in Juvenile Court. Later, he moved to the Santa Ana based criminal defense firm of Stewart & Barnett. The firm had a contract to represent individuals in criminal cases where the Public Defender had a conflict of interest. In 1992, Mr. Hartmann started the Hartmann Law Firm, where he remains owner and principal.

Mr. Hartmann is admitted to practice before the United States Supreme Court, the United States Court of Appeals for the Ninth Circuit and Fifth Circuit, the United States District Courts for the Central, Northern, Southern and Eastern Districts of California, Eastern District of Texas, Middle District of Tennessee and Northern District of Georgia. He is also admitted to practice in front of all of the State and Appellate Courts of California, and has represented clients the state courts of New York (Manhattan), Maryland, Florida, Alabama and Nevada.

Mr. Hartmann served for a number of years as an Orange County Judge Pro Tempore in West Justice Center (Orange County). And, over the years, he has provided legal commentary for television station KTLA, and served as an adjunct professor of law and taught Criminal Law and Juvenile Law at Western States University School of Law in Orange County. In 2014, Mr. Hartmann was recognized as a Super Lawyer by that publication, and been recognized in Who’s Who in Executives and Professionals and Martindale-Hubbell.

Mr. Hartmann attended Loyola of Los Angeles Law School, where he was selected to be a member of the prestigious Law Review. He published “Throwing Away the Keys to Prisoners’ Privacy and Due Process Rights” in 1986 that was recognized by the National Law Journal and served as an Editor on the Law Review. He was selected to “Who’s Who Among American Law Students.” While at Loyola, he participated in a study abroad program at Oxford University in the United Kingdom. He completed his undergraduate studies at UCLA where as a member of the UCLA Debate Team, he won the National Championship in his sophomore year, and had the highest winning percentage in the nation as a junior and senior.

Mr. Hartmann is currently, and for ten years has served, as a volunteer and member of the Board of Trustees of Boys Town California, twice having served as Chairman of the Board. Boys Town California is the local site for the world-famous Boys Town, founded by Father Edward Flanagan, and based in Omaha Nebraska. Boys Town is, and has been for nearly 100 years, the leader in the treatment and care of abused, abandoned and neglected, girls and boys and provides substantial and family saving in-home services to dysfunctional families teetering on the brink of break-up.

Julie Tran is the Chief Administrative Assistant at the Hartmann Law Firm.

Robert Hartmann, Certified Criminal Law Specialist

K and I want to thank you very much. K is so relieved that her case is finally over. We are both very happy about the outcome, and we owe a lot to your work…

We especially want to thank you for your kindness, understanding, and genuine caring. We wish you and your family continued success, health, and prosperity…

The Orange County based criminal defense office, the Hartmann Law Firm, will be able to help you. Robert Hartmann has worked for over 27 years in Orange County, Southern California, and across California and the United States defending clients against criminal charges in federal and state court.

If you have any questions regarding the Hartmann Law Firm and criminal defense, contact us. Mr. Hartmann is often available for evening and weekend appointments. The firm is conveniently located in Newport Beach, less than a mile from John Wayne, Orange County Airport. Contact us at 714 543-2266.

Bar Admissions

  • California State Bar, 1987
  • United States Supreme Court
  • United States Court of Appeal for the Ninth Circuit
  • Central, Eastern, Northern and Southern Districts of the State of California
  • California Supreme Court
  • All of the Courts of the State of California

Professional Associations & Teaching

  • Board of Directors, Girls and Boys Town of Southern California, The Original Father Flanagan’s Boys’ Home
  • National Association of Criminal Defense Lawyers
  • American Trial Lawyers Association
  • Former Adjunct Law Professor, Western States University College of Law, Criminal and Juvenile Law


  • Judge Pro Tempore, Orange County Superior Court
  • Who’s Who in Executives and Professionals
  • America’s Registry of Outstanding Professionals


  • J.D., Loyola Law School, Los Angeles, CA 1986
  • Oxford University, Summer 1984
  • B.A., Political Science, University of California, Los Angeles, 1982

Publications & Lectures

  • Throwing Away the Keys to Prisoner’s Privacy and Due Process Rights,
    • Loyola of Los Angeles Law Review, Vol. 19, No. 2, 1985


  • Over 100 jury trials to verdict
  • Over 1000 preliminary hearings
  • Specializing in all criminal cases

Professional Activities

Mr. Hartmann represents persons including directors, officers, employees, and other professionals and political officeholders who have already been indicted or who the federal government designates as targets or subjects of investigation and prosecution in white-collar crime cases. He also represents corporations and partnerships under criminal and/or administrative investigation, or already indicted for criminal acts. Mr. Hartmann also represents individuals accused of crimes in state and federal courts, and assists minors accused of crimes in Juvenile Court.