Law Office of Diego F. MacWilliam


The law firm of Diego F. MacWilliam, in San Jose, California, handles all aspects of civil litigation (personal injury, wrongful death actions, product liability, medical/dental malpractice, real estate and business litigation); criminal law (all felonies and misdemeanors), and family law (divorce, child custody and visitation, child and spousal support, property division).

Attorney Diego F. MacWilliam has extensive experience in litigation and has tried numerous jury and court trials. He is highly rated as a lawyer (“Excellent” rating by ”” and ” BV Distinguished” rating by Martindale-Hubbell*).

Mr. MacWilliam graduated from the University of California, Berkeley, with a A.B. degree in Legal Studies, and Santa Clara University School of Law with a J.D. (Jurisprudence Doctor) degree. Mr. MacWilliam is admitted to practice law before all courts in the state of California and the United States District Court for the Northern District of California. The law firm has successfully represented clients throughout the state of California for more than 20 years. Mr. MacWilliam is fluent in Spanish.

CIVIL LITIGATION: The firm represents clients in civil litigation matters, including complex personal injury cases (serious/catastrophic auto accidents / dog bites), wrongful death/negligence actions, product liability, catastrophic accidents, medical and dental malpractice, business and real estate litigation, and employment related matters (wrongful termination / discrimination).

FAMILY LAW: The firm regularly handles complex divorce cases involving high value assets. Mr. MacWilliam is recognized as a very effective litigator in family disputes. When appropriate, Mr. MacWilliam also offers mediation services to clients going through divorce. The “collaborative” approach to divorce and separation ensures that highly personal issues such as child custody and visitation, alimony and child support can be settled without the added stress of a formal court hearing.

CRIMINAL LAW: The firm represents clients facing serious criminal charges throughout the state of California. Mr. MacWilliam successfully represents clients charged with domestic violence, drug cases (narcotics), drunk driving (DUI), theft, fraud (including “white collar crime”), assault, sexual assault, homicide, “strike felonies”, and violation of probation. The office handles record clearance / expungment applications.


FEES: Fixed/Hourly/Contingent (Personal Injury cases). There is no fee for the initial consultation.

MEMBER: State Bar of California; Santa Clara County Bar Association; California Public Defenders’ Association (CPDA).

OFFICE HOURS: Monday through Friday 9:00 a.m. to 6:00 p.m. Weekend appointments are available upon request.

*AV Preeminent and BV Distinguished are certification marks of Reed Elsevier Properties Inc., used in accordance with the Martindale-Hubbell certification procedures, standards and policies. Martindale-Hubbell is the facilitator of a peer review rating process. Ratings reflect the confidential opinions of members of the Bar and the judiciary. Martindale-Hubbell ratings fall into two categories – legal ability and general ethical standards.

Contact Us


1625 The Alameda
Suite 800
San Jose, CA 95126- 2225




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