Aggressive Representation For Your Criminal Defense Needs: Proven Approach With Results Forged By Experience
At The Law Offices of Mark Deniz APLC, we are committed to protecting our clients’ rights in all criminal defense matters with proactive representation. Our attorney and founder, Mark Deniz, has spent more than two decades immersed in criminal law – first as a prosecutor, now as a passionate defender of those accused of crimes. After graduating in 2002 and being admitted to The State Bar of California in 2003, he began his career on the prosecution side. He gained invaluable insight into how cases are built and tried.
From 2004 to 2009, Mark served as a deputy district attorney in Tulare County, handling a wide range of criminal matters. In 2009, he joined the San Diego City Attorney’s Office as a deputy city attorney, where he continued prosecuting cases until 2013. That same year, he launched The Law Offices of Mark Deniz APLC, driven by a commitment to protecting the rights of individuals facing criminal charges.
Our mission: We believe every client deserves a defense that is proactive, personalized and powerful. Whether you’re facing a DUI, drug charge, domestic violence allegation or another criminal matter, we are here to fight for your rights and protect your future.
Learn more about Mark and his team:
- Mark L. Deniz, founder and managing attorney
- Mayra Jaime, chief case manager
- Jannette Hermosa, case manager
A Uniquely Valuable Perspective On Criminal Defense
Mark’s experience as a prosecutor gives him a rare advantage. He understands criminal law from every angle: law enforcement, prosecution and now defense. He has undergone extensive training on police procedures, including:
- Graduate of Harvard Law School (summer session)
- National College for DUI Defense – Field Sobriety Tests (FST) training, taught by a renowned former state trooper
This in-depth knowledge allows Mark to identify weaknesses in the prosecution’s case and build strong, strategic defenses for his clients.
Recognized For Excellence
Mark’s commitment to his clients and his results-driven approach have earned him numerous honors, including:
- Top Criminal Defense Lawyer
- Perfect 10.0 rating on Avvo
- Client’s Choice Award for six consecutive years
- Featured in Attorney Journals magazine
- And many more distinctions that reflect his reputation for excellence in criminal defense
Why Hire Us For Your Criminal Defense?
When considering who to trust with your criminal defense, Mark Deniz stands out for his extensive experience and commitment. Practicing law since 2003 exclusively in the field of criminal law, he has handled a wide array of cases, from DUIs to life/three-strikes law cases. Drawing from nearly a decade of experience as a prosecutor, both as a deputy district attorney and a deputy city attorney, he has developed strategies and defensive approaches informed by his insider knowledge of the prosecution, crime labs and law enforcement.
Mark’s comprehensive training with prestigious agencies such as the U.S. Department of Justice, the San Diego County District Attorney’s Office and the California District Attorneys Association, alongside his studies at Harvard Law School and the National College for DUI Defense, equips him with a well-rounded understanding of the criminal justice system. His proven results are backed by numerous client testimonials on platforms like Yelp, Avvo and Google, and our firm boasts an A+ rating from the Better Business Bureau.
Noteworthy accolades, including being named to the National Trial Lawyers Top 100, highlight Mark’s dedication to achieving the best outcomes for his clients. He offers personalized representation and a proactive approach, with flexible payment plans to support clients facing unexpected legal challenges. Regularly seen in the courthouse and well-acquainted with many prosecutors and judges throughout San Diego County, his familiarity with the local legal landscape is a significant advantage.
Moreover, Mark’s background as a former Division 1 NCAA football player and senior prosecutor reflects his readiness to tackle challenges head-on. As an author and faculty member, he also contributes to the legal community by educating fellow attorneys about criminal law. With Mark and our team on your side, you will be in good hands, ensuring your defense is both robust and strategic.
Start Your Defense Today
Your future is too important to leave to chance. Contact The Law Offices of Mark Deniz APLC at 858-429-9982 or complete our online contact form for a free, confidential case evaluation. Let us put our experience and proven results to work for you.


