Avvo Review Score

5.0 /5.0

376 Client Reviews

Filter Avvo Reviews (376) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 1 - 5 of 238 reviews | Criminal Defense

Posted by Cesar | April 19, 2026 | Hired Attorney

Professional and Caring Attorney

I worked with Mark last year when I got my first DUI in San Diego and I was terrified as I could be potentially facing a harsh judgment from the court because of a refusal and a high BAC. I called Mark on a weekend and he walked me through all of the steps needed to get the best outcome. I trusted hi...m and we worked well together and in 2 months we got a best outcome and my refusal also got overthrown. I did no jail time, but everything the court gave me to do I have completed in about a year time. Definitely recommend Mark for your legal needs and keep in mind that every case is very specific to your facts, but Mark answers all of the questions and really works on your behalf if you work with him.

Mark Deniz

Replied last May 25, 2026

 Thank you for your positive review.  I narrow my practice with work with quality people as much as I can.  This case is an example of working with someone you want to go fight for.  Thank you for the kind words! 

Posted by CM | February 26, 2026 | Hired Attorney

Helping an out of state student

Attorney Deniz was responsive, professional, and knowledgable. I didn't understand why I was arrested over not signing for a parking citation while on a delivery job, but it turned into something that needed to be handled, and I was leaving the state in a few weeks after graduating school. Due to his... efforts no further legal action was taken. Thank you Attorney Deniz, C.M.

Mark Deniz

Replied last March 02, 2026

You were easy to work with and advocate for. I always want to ensure you know what is going on every step along the way. Thank you for allowing me to advocate on your behalf!

Posted by anonymous | January 25, 2026 | Hired Attorney

Connected, aggressive, compassionate, and results outcome-focused

Hiring Mark Deniz was the best decision I made after my DUI arrest. If you’re looking for the best DUI lawyer in San Diego or an experienced California DUI attorney, he is the one you want in your corner. From the start, he showed real compassion; even speaking with my wife the night of the incident ...to reassure her. He is highly knowledgeable, well-connected, and has the perfect balance of being strategic and aggressive in handling a case. In my situation, CHP stacked multiple charges, but he was able to have them reduced and negotiated a much lighter sentence than I thought possible. He also provided a clear roadmap for both the court and DMV processes, which took away so much of the stress and confusion. His communication is very direct, and while he gives a lot of information at once (sometimes I had to ask him to repeat or clarify), he was always responsive and usually got back to me within a day. Another thing that stood out is that unlike many firms where you’re passed off to associates, he personally handled all of my court appearances and representation himself. His staff helps with administrative work, but he’s the one standing by you in court. His fees were also affordable compared to other attorneys I spoke with, and worth every penny. Overall, I felt supported by someone who genuinely cared about my outcome and had the skill, connections, and determination to achieve the best result possible. I strongly recommend him to anyone searching for a top-rated DUI lawyer in California.

Mark Deniz

Replied last January 26, 2026

When people choose me as an attorney, I know there is a lot of trust they have to put into me. I take pride in knowing that I do honest hard advocating on their behalf. I am pumped when the road ends and I saw my efforts make a difference. Thank you for your kind words and for allowing me to advocate on your behalf!

Posted by anonymous | November 28, 2025 | Hired Attorney

Experience that makes you feel safe in a stressful time.

Mark is very experienced, he knows the system inside and out. I felt very protected in a really bad situation. His confidence and knowledge made me feel like I was in safe hands. I was facing a DUI charge and my case was resolved with a wet. He was able to work out a deal before my case would have go...ne to trial. He attended all court dates on my behalf so I didn’t have to go to court at all. I would recommend him 100%. -SF

Mark Deniz

Replied last November 29, 2025

 Thank you for your positive review.  I narrow my practice with work with quality people as much as I can.  This case is an example of working with someone you want to go fight for.  Thank you for the kind words! 

Posted by A | October 01, 2025 | Hired Attorney

Best DUI Lawyer in SD

Mark is an amazing lawyer. He picked up my case last minute and helped me through the whole process. This was all new to me because it was my first time getting arrested. He is professional and easy to contact . With his help my case was dismissed and doesn’t even show up on my record. In my opinion ...mark was affordable and offered different payment option which was awesome. I would definitely hire mark again.

Mark Deniz

Replied last October 05, 2025

 Thank you for the kind words.  Communication is key for us.  I know people have a cloud over their head when they are going through the case.  I work hard to keep the trust people give me.  I was glad to have been a help. It is easy advocating for a nice person. The future is nothing but up for you.

See All Client Reviews