Skip to main content

Ronald Michael Dinan

Criminal defense Attorney at Santa Rosa, CA

3.4   5 reviews
  • Licensed for 47 years
    State CA
    Acquired 1976
    Active No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Ronald

Learn Ronald’s areas of practice.

Practice areas
  1. Criminal defense

    48 years, 6,500 cases

  2. DUI and DWI

    48 years, 5,500 cases


Ronald Michael Dinan
411 Russell Ave
Santa Rosa, CA, 95403

Similar lawyers nearby


3.4 / 5.0
  5 customer reviews
5 Star
4 Star
3 Star
2 Star
1 Star
Posted by anonymous | October 12, 2022
This review is from a potential client who consulted with this attorney.
| Consulted Attorney
Very knowledgeable upfront and helpful. He's been in the business a while. He and his firm will work for you. Do what they tell you and it will work out.
Posted by Vin | December 2, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Ronald and William helped me get out of some deep water recently when I was arrested for my 2nd DUI. Not only did they take care of all of my court appearances (I didnt have to go) but they also took care of all of the DMV BS. They even helped me find a place to have my IID installed. These guys know their stuff.
Posted by phillip | October 29, 2015
This review is from a person who hired this attorney.
| Hired Attorney
A lawyer that delivers in court plus more
After being arrested, I sought out a lawyer/firm to represent me that is honest, fair, and knowledgeable in criminal law and that’s what I found after receiving a referral to Ron Dinan & associates. I called them to see how they could help me in my unique case, I got to speak directly to Mr. Dinan himself and I found that Mr. Ron was the only lawyer that was knowledgeable about my criminal charges and what I needed to do and how to accomplish my goals. Mr. Ron asked a lot of questions about the incident during the first conversation we had and explained the whole process I was going to go threw in extreme detail, as where the other lawyers/firms I contacted did not. After hearing how Mr. Dinan could assist me I made the decision to allow him to represent me and am glad I did. They constantly communicate with me by telephone, e-mail, and letters threw the mail. My outcome in court was better than I could ever foresee or image by having Ron Dinan & Associates represent me. Thank you for all the hard work you guys do and getting great results in court.
Read less
Posted by Mick | February 24, 2023
This review is from a person who hired this attorney.
| Hired Attorney
BEWARE, they dont give you any overpaid balance back and dont even care. First this all went well, but Rachel (secretary) is very rude and for sure calling you to collect payments. But when it came to them paying back the security retainer of $2500 (as per contract agreed upon) they ghost you. Sad if you have to file a complaint to the board against your lawyer. Ruins the whole experience and their reputation. Perhaps in financial difficulties? I don't know, but sure doesn't look good. Let's see what the board says.
Read less
Posted by mike | September 9, 2013
Stay FAR Away from this Firm!
This firm is terrible. I had a DUI in CA and live in MD so I had Ronald Dinan represent me in the case and in court. $6500 later, they did not provide any advantage whatsoever over what I could have done myself. In retrospect, I should have flown back/forth from MD to CA and defended myself, I would have saved several thousand dollars. If this wasn't enough, they did not take care off the CA DMV part of the issue so, when I went to get my license renewed in MD a year and a half later, it was denied since CA had placed a "flag" on it. I had to work with the CA MVA to get this cleared since, in talking with Ron Dinan, he wanted another $500 deposit to work the issue for me. These guys are nothing but a money-grubbing outfit that offer nothing of added value. My recommendation is to find a real lawyer and don't waste your time on these guys. I picked them originally because of the fancy ads they had in the phone book as I wasn't familiar with CA attorneys - never again. STAY AWAY!
Read less
Response from Ronald Dinan October 13, 2022
Mike, The notion that you could have handled your case as well as we did is laughable. The facts are that we explained what you needed to do from your home state to avoid having to attend the DUI school but you didn't pay attention. Then, later ,after some time had passed, you called us to get the same advice again and screamed at my staff over the phone. We don't tolerate that kind of abuse towards our staff and when I insisted that you treat them in a calm and non-hostile fashion using no obsentities, you again went ballistic. To avoid any further contact between you and my staff, I , once again, spent time with you explaining once again what you needed to do. My thanks for that effort resulted in you posting a 1 star review. As they say, no good deed goes unpunished! We wish you the very best!
Read less


  • Free Consultation 20 minutes


AVVO RATING 6.5 (Good)

Work Experience

  • Owner
  • Ronald Dinan & Assoiciates
  • 1978 - Present


  • Oklahoma City University School of Law
  • JD - Juris Doctor
  • 1974
  • Florida Atlantic University
  • Masters of Business Administration
  • 1972
  • Univ of Miami
  • BS - Bachelor of Science
  • 1971


  • National College of DUI Defense
  • 1995 - Present
  • National Association of Criminal Defense Attorneys
  • 1990 - Present
  • California Public Defenders Association
  • 1985 - Present
  • California Attorneys for Criminal Justice
  • 1980 - Present
View all associations

Honors and Awards

  • Life Member
  • National Association of Criminal Defense Lawyers
  • 2002

Attorney endorsements

Received (0)
Given (0)
Endorse Ronald
Endorsements from fellow lawyers are an important consideration for many when selecting the right attorney.
This attorney hasn't created any attorney endorsements recently on Avvo.
Santa Rosa Criminal defense Lawyer Ronald Michael Dinan
Ronald Michael Dinan
Criminal defense Attorney
Santa Rosa, CA
Licensed for 47 years
Free Consultation