Criminal Defense Attorney Southern California — Poseidon Defense A.P.C.
State and Federal Criminal Defense Available for You 24/7
Criminal Defense Attorney Serving Orange County, Los Angeles, San Diego, Riverside, San Bernardino & Kern Counties
Premier Lawyer — Verified
Geronimo Gutierrez IV
2027 Southern California Rising Stars | Top 2.5%
Aggressive Defense Across All Criminal Charges
From misdemeanors to federal felonies, Poseidon Defense A.P.C. provides strategic, experienced representation for every type of criminal charge in Southern California.

Available 24/7
Free Consultations
About Geronimo Gutierrez IV
Founder and Chief Counsel, Geronimo Gutierrez IV, is an experienced attorney specializing in state and federal criminal defense throughout Southern California. With experience at the San Diego Public Defender's office and private firms, Geronimo brings aggressive, knowledgeable representation to every client.
Geronimo understands that a criminal charge can upend your life. He is committed to providing personalized, strategic defense — treating every client with the respect and dedication their case deserves.
- Associate Criminal Defense Attorney, Los Angeles, California Law Firm
- Senior Legal Intern — McCaffrey, LLP
- San Diego Public Defender, Multiple Conflicts Office
- Certified Legal Intern, Primary Public Defender
- State & Federal Court Representation
- Admitted to the Central & Southern Districts of California
The Poseidon Defense Difference
When your freedom is on the line, you deserve an attorney who fights as hard as the prosecution. Here's what sets us apart.
Strategic Defense Planning
Every case receives a customized defense strategy built around your specific facts, charges, and goals.
Direct Attorney Access
You work directly with Geronimo Gutierrez IV — not a paralegal or junior associate.
Courtroom Experience
Proven trial experience in California Superior Courts and Federal District Courts.
State & Federal Representation
Admitted to practice in both California state courts and federal courts in the Central and Southern Districts.
Fast Response Times
Criminal charges move fast. We respond quickly so your defense starts immediately.
Free Confidential Consultations
Speak with an attorney at no cost. Everything you share is protected by attorney-client privilege.
What Our Clients Say

"Geronimo fought hard for me when I was facing a DUI charge. He was available every time I called, explained everything clearly, and got my charges reduced. I cannot recommend him enough."
Michael R.
Orange County
"I was terrified when I was arrested. Geronimo immediately put my mind at ease and built a strong defense. The charges were ultimately dismissed. He is an exceptional attorney."
Sarah T.
Los Angeles County
"Facing federal charges was the most stressful experience of my life. Geronimo navigated the federal court system with expertise and secured an outcome far better than I expected."
David M.
San Diego County
"Habla español y entiende perfectamente mi situación. Fue muy profesional y logró que se desestimaran los cargos. Estoy muy agradecida."
Ana L.
Riverside County
Serving Clients Across Southern California
Poseidon Defense A.P.C. represents clients facing state and federal criminal charges in Los Angeles County, Orange County, San Diego County, Riverside County, San Bernardino County, and Kern County. Whether you're facing charges in California Superior or Federal Court, we provide aggressive criminal defense representation throughout Southern California.
Frequently Asked Questions
Get Your Free Case Analysis
Your future is too important to leave to chance. Contact Poseidon Defense A.P.C. now for a free confidential consultation. Everything you share is protected by attorney-client privilege.
Call or Text
(657) 255-6455
Office Address
1440 North Harbor Boulevard #260
Fullerton, California 92835
Availability
Call or Text 24/7 — Walk-ins Welcome!


Send My Free Case Analysis
Get Experienced Criminal Defense Today
Your future is too important to leave to chance. Contact Poseidon Defense A.P.C. now for a free confidential consultation.
