Atty. David Anthony Sonner

Atty. David Anthony Sonner

David Anthony Sonner is a lawyer practicing government contracts law, litigation. David received a M.A. degree from Claremont Graduate School in 1981, and has been licensed for 38 years.

Walnut Walnut 38 yrs experience 38 year
Call (626) 999-3560 Book Appointment

Profile Summary

About David Anthony Sonner at a glance

David Anthony Sonner is a litigation and government attorney based in Walnut, California. They have 38+ years of legal experience, licensed to practice since 1988. Admitted to practice in California (1988). Educated at Southwestern University School of Law (J.D., 1988) and Claremont Graduate School (M.A. Harvey, 1981). Serands clients in Walnut, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • David Anthony Sonner is a lawyer practicing government contracts law, litigation
  • David received a M.A. degree from Claremont Graduate School in 1981, and has been licensed for 38 years
  • David practices in Walnut, CA

Practice Areas Explained

David Anthony Sonner's Areas of Practice

Each practice area below reflects the types of cases David Anthony Sonner handles, with a brief overview of what that area of law covers.

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

David Anthony Sonner is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in California →

Government & Administrative Law

Attorneys for administrative law, agency hearings, government contracts, licensing, and public benefits.

David Anthony Sonner is one of 132,225 government attorneys indexed nationally. Browse government attorneys in California →

Jurisdictional Context

Why local counsel matters in California

Practicing law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Walnut are typically filed in the local municipal court or the appropriate California state district court, depending on subject matter and amount in controversy. An attorney licensed in California brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in California courts without local counsel or pro hac vice admission.

Looking for additional California attorneys? Browse all attorneys in Walnut or all attorneys in California.

Frequently Asked

Common questions about David Anthony Sonner

Where is David Anthony Sonner's law office located?
David Anthony Sonner's law practice is located in Walnut, California. You can contact the office directly through this profile page.
What practice areas does David Anthony Sonner handle?
David Anthony Sonner focuses on litigation, government. Each practice area listed reflects experience handling cases of that type in California.
How long has David Anthony Sonner practiced law?
David Anthony Sonner has 38+ years of legal experience and has been licensed since 1988.
Where did David Anthony Sonner go to law school?
David Anthony Sonner earned their education at (J.D., 1988); (M.A. Harvey, 1981).
How can I contact David Anthony Sonner for a consultation?
You can contact David Anthony Sonner directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

J.D.
Southwestern University School of Law
- 1988
M.A. Harvey
Claremont Graduate School
- 1981

Bar Admissions

California
Admitted: 1988

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