• 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

    Learn about the required elements of your criminal charges and be pro active in your defense

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  • California Crimes

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

Contact Ronald Dinan & Associates

Northern California Criminal Defense Attorneys

Our law offices in Sonoma, Napa, Marin, Lake, Mendocino and Humboldt Counties are close to the courthouse and convenient to you. If you have been arrested on DUI or criminal charges or require other legal counsel, you can expect a courteous and helpful response from our attorneys and staff. We can be reached evenings and weekends, as well as during normal business hours. To speak to an attorney, please phone your location, below:

In Sonoma County:

411 Russell Avenue
Suite 113
Santa Rosa, CA, 95403

Phone: (707) 416-0880


In Napa County:

1034 Walnut St.
Napa, CA, 94559

Phone: (707) 252-0102


In Marin County:

4040 Civic Center Dr., Ste. 200
San Rafael, CA, 94903

Phone: (415) 689-6541


In Lake County:

390 North Forbes St.
Lakeport, CA, 95453

Phone: (707) 574-8196


In Mendocino County:

705 N. State St., Ste. #136
Ukiah, CA, 95482

Phone: (707) 968-7024


In Humboldt County:

917 3rd St.
Eureka, CA, 95501

Phone: (707)408-3848