Atty. Brian George Thorne

Atty. Brian George Thorne

Brian George Thorne is a lawyer practicing family - dissolution of marriage (property division, child custody, child & spousal support), guardianship/conservatorship/adoption, grandparents rights (inclusive of family law) and 1 other area of law. Brian received a B.S. degree from California State University, Los Angeles, California in 1980, and has been licensed for 41 years.

Ontario Ontario 41 yrs experience 41 year
Call (626) 598-7618 Book Appointment

Profile Summary

About Brian George Thorne at a glance

Brian George Thorne is a Partner based in Ontario, California, practicing at Haslam & Thorne, APC. They have 41+ years of legal experience, licensed to practice since 1985. Their practice focuses on divorce, child custody, family law, alimony, and poa. Admitted to practice in California (1985), U.S. District Court Central District of California (1990), U.S. District Court Eastern District of California (1990), and U.S. District Court Southern District of California (1990). Educated at Southwestern University School of Law, Los Angeles, California (J.D., 1983) and California State University, Los Angeles, California (B.S. Criminal, 1980). Recognitions include AV Preeminent. Serands clients in Ontario, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Brian George Thorne is a lawyer practicing family - dissolution of marriage (property division, child custody, child & spousal support), guardianship/conservatorship/adoption, grandparents rights (inclusive of family law) and 1 other area of law
  • Brian received a B.S. degree from California State University, Los Angeles, California in 1980, and has been licensed for 41 years
  • Brian practices at Haslam & Thorne, APC in Ontario, CA

Practice Areas Explained

Brian George Thorne's Areas of Practice

Each practice area below reflects the types of cases Brian George Thorne handles, with a brief overview of what that area of law covers.

Divorce

A divorce attorney guides you through property division, spousal support, custody, and the final decree — contested or uncontested.

Brian George Thorne is one of 50,487 divorce attorneys indexed nationally. Browse divorce attorneys in California →

Child Custody & Visitation

Brian George Thorne is one of 31,241 child custody attorneys indexed nationally. Browse child custody attorneys in California →

Family Law

Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.

Brian George Thorne is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in California →

Alimony / Spousal Support

Brian George Thorne is one of 10,688 alimony attorneys indexed nationally. Browse alimony attorneys in California →

Power of Attorney

Brian George Thorne is one of 33,188 poa attorneys indexed nationally. Browse poa 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 Ontario 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 Ontario or all attorneys in California.

Frequently Asked

Common questions about Brian George Thorne

Where is Brian George Thorne's law office located?
Brian George Thorne's law practice is located in Ontario, California. The firm is Haslam & Thorne, APC. You can contact the office directly through this profile page.
What practice areas does Brian George Thorne handle?
Brian George Thorne focuses on divorce, child custody, family law, alimony, poa. Each practice area listed reflects experience handling cases of that type in California.
How long has Brian George Thorne practiced law?
Brian George Thorne has 41+ years of legal experience and has been licensed since 1985.
Where did Brian George Thorne go to law school?
Brian George Thorne earned their education at (J.D., 1983); (B.S. Criminal, 1980).
How can I contact Brian George Thorne for a consultation?
You can contact Brian George Thorne 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.
What awards or recognition has Brian George Thorne received?
Brian George Thorne's notable recognition includes: AV Preeminent.

Education

J.D.
Southwestern University School of Law, Los Angeles, California
- 1983
B.S. Criminal
California State University, Los Angeles, California
- 1980

Awards

AV Preeminent

Bar Admissions

California
Admitted: 1985
U.S. District Court Central District of California
Admitted: 1990
U.S. District Court Eastern District of California
Admitted: 1990
U.S. District Court Southern District of California
Admitted: 1990
U.S. District Court Northern District of California
Admitted: 1990

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