John Klopfenstein Photo

John Klopfenstein

Founding Attorney
  • Profile

John has a diverse background when it comes to the law. In the mid-1990s, he had his own practice in Beverly Hills litigating personal injury cases on behalf of other attorneys. After acquiring valuable experience in civil court, he went on to work as a public defender for fifteen years between 1997 and 2012, serving the California counties of Yolo and Monterey for ten and five years.

In 2007, John was asked to teach Criminal Law and Criminal Procedure at Parma, the oldest and most prestigious University in all of Italy. During this time he also worked with Italy’s most famous law professor Mr. Cadopi working together as he was commissioned by the Italian Government to rewrite the Italian Penal Code basing it on American Law from NY and California. This experience as well as his many years as an award-winning public defender allowed John to gain a great deal of crucial insight into the workings of the California criminal justice system.

In these 27 years, he has taken on thousands of misdemeanor and felony cases and handled more than 200 jury trials which have allowed him to lay the foundation for his successful criminal defense practice. This diverse background is what underlies the success of the Law Office of John Klopfenstein when it comes to helping residents of Salinas, Hollister, and the rest of Monterey County address tough legal issues.


  • Thomas Jefferson School of Law, San Diego, California – J.D. (1993)
  • University of California at Los Angeles, LA, California – Post-graduate litigation certificate (1988)
  • University of Washington, Seattle, Washington – B.A. (1988)


  • State Association of California (1993)
  • US Federal Court – Central District of California (1993)
  • BBB
  • California DUI Lawyers Association
  • Lawyers of Distinction
  • The National Trial Lawyers - Top 100 Trial Lawyers
  • The National Trial Lawyers - Top 40 Under 40
  • CACJ
  • California Public Defenders Association
  • 10 Best American Institute of DUI/DWI Attorneys
  • 10,000+

    Clients Successfully Helped

  • 25+

    Years of Legal Experience

  • 200+

    Jury Trials to Verdict

  • 100%

    Focused on Client Service

Our Notable Cases

We Keep You Out of Jail at an Affordable Price
  • Murder Case to Supreme Court Favorable Result
  • Sexual Assault Favorable Result
  • Suspected Serial Killer Favorable Result
  • Wrongful Death Favorable Result

Client Testimonials

Read What People Had to Say
    I recommend anyone to check John out if you are in a tight spot.

    “Mr. Klopfenstein ably represented my family and business today. He understood law better than the other side and was able to neutralize a bully who could have hurt us bad without his service. I ...”

    - Pete & Aida W.
    John knows what freedom is about and he knows how to win freedom for others.

    “One of the greatest trial lawyers of this or any other time. Our clients always felt assured of the best possible results when entrusting their very lives into the talented and capable hands of John ...”

    - Former Yolo County Public Defender, Barry Melton
    I strongly support Mr. Klopfenstein's services to all.

    “Mr. Klopfenstein represented me legally with utmost respect and professionalism. I strongly support Mr. Klopfenstein's services to all. Simply a good old fashion positive approach to legal issues.”

    - Arthur B.
    He helped me through a very hard time. He can help you too.

    “I would recommend this attorney to anyone who may be facing criminal prosecution. John is understanding and nonjudgmental. He helped me through a very hard time. He can help you too.”

    - Kathryn
    He will truly fight for your rights.

    “My experience with the Law office of John Klopfenstein has been nothing but positive. Mr. Klopfenstein has been been professional, courteous, knowledgeable and understanding of the concerns and ...”

    - Rita S.

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