• DUI Defense

    Get Important Information on Drunk Driving

    The more you know about your rights, options, and defenses, the better your final results can be!

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  • Criminal Defense

    12,000+ Criminal Cases Resolved

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    About California’s Criminal Laws

    From misdemeanors to felonies, we handle all types of criminal cases under California’s Penal Code.

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Sonoma County Attorney Office

Sonoma County Criminal Defense Lawyers

150+ Years of Combined Experience

Both misdemeanor and felony convictions can have serious consequences on your criminal record and future opportunities. If you are facing criminal charges in Sonoma County, or anywhere else in Northern California, retain legal representation from a firm with the experience and ability necessary to help you minimize damages and obtain a favorable solution. At Ronald Dinan & Associates​, our criminal lawyers have successfully resolved more than 12,000 criminal cases and continue to serve our clients with personalized care.

Ronald Dinan & Associates​​
411 Russell Ave.
Santa Rosa, CA, 95403
Phone: (707) 416-0880

Criminal Defense Team in Santa Rosa

We offer decades of experience for many criminal defense issues, including:

Our criminal defense attorneys in Sanoma County may also assist you with a number of other issues involving criminal law. Whether you need representation in a case or guidance concerning pardons and investigations, our firm may be able to help you obtain positive results. Protect your rights with the help of our criminal defense team.

Experienced California DUI Defense Attorneys

With more than 150 years of combined experience in criminal defense, Ronald Dinan & Associates​ has extensive knowledge of California DUI defense and DUI law. We understand DUI charges can be very confusing, and we seek to keep our clients informed about their options in a DUI defense and the consequences they may be facing. If you are facing a DUI charge, it is important to ensure your rights are protected and you are making good decisions as you move forward. Retaining our criminal defense team in Sonoma County may help you stay informed of your rights and your options in a DUI defense.

Northern California Criminal Defense Since 1976

If you are facing criminal charges or need help with a DUI in Northern California, retain a legal team with vast knowledge and experience handling difficult legal issues. Our firm's philosophy is to treat each case as if it were our own, so we take cases very seriously. Work toward a favorable solution in your criminal case. Schedule a free case evaluation with the legal team at Ronald Dinan & Associates today!


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Get Directions from your location in Santa Rosa, Petaluma, Rohnert Park, Windsor, Healdsburg, Sonoma, Sebastopol and other Sonoma County cities to our Santa Rosa Office.

Hours of Operation:

Monday - Friday: 8 AM to 5 PM

In addition to normal business hours, the attorneys at our Santa Rosa office can be reached evenings and weekends at 707-416-0880.

Ronald Dinan & Associates, Attorneys & Lawyers, Santa Rosa, CA