District Attorney's Office Office addresses, phone, fax, and email County Superior Court Operations: 900 Ward Street, Martinez, CA 94553 Phone: 925-957-2200 Get a referral to an experienced attorney anytime!The Moderate Means Program is designed for clients who need legal representation for family law and have limited resources. If you are looking for legal help, please call us or fill out the form. Call Attorney Search Network toll free at (800) 215-1190 or fill out our online form for a Contra Costa County lawyer referral. The Family Law Facilitator's Office offers assistance with the completion of legal forms and provides procedural guidance in most areas of Family Law. Public law libraries are located in the Martinez and Richmond courthouses. Contra Costa County lawyer Daniel Horowitz provides the highest level of legal representation for residents of Lafayette and the surrounding communities. Contra Costa County District Attorney's Office. 925-957-2200. Contact our office today at (925) 900-5330 or complete our online contact form for your confidential consultation.