Atty. Mark Douglas Campbell

Atty. Mark Douglas Campbell

Mark Douglas Campbell is a lawyer practicing litigation, antitrust & unfair competition, antitrust and 1 other area of law. Mark received a B.S. degree from California State University, Northridge in 1992, and has been licensed for 31 years.

Los Angeles Los Angeles 31 yrs experience 31 year
Call (213) 603-9903 Book Appointment

Profile Summary

About Mark Douglas Campbell at a glance

Mark Douglas Campbell is a Partner based in Los Angeles, California, practicing at Sidley Austin LLP. They have 31+ years of legal experience, licensed to practice since 1995. Their practice focuses on litigation. Admitted to practice in California (1995), U.S. District Court, Central District of California (1995), U.S. District Court, Northern District of California (1997), and U.S. District Court, Eastern District of California (1997). Educated at University of California, Los Angeles (J.D., 1995) and California State University, Northridge (B.S., 1992). Serands clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Douglas Campbell is a lawyer practicing litigation, antitrust & unfair competition, antitrust and 1 other area of law
  • Mark received a B.S. degree from California State University, Northridge in 1992, and has been licensed for 31 years
  • Mark practices at Sidley Austin LLP in Los Angeles, CA

Practice Areas Explained

Mark Douglas Campbell's Areas of Practice

Each practice area below reflects the types of cases Mark Douglas Campbell 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.

Mark Douglas Campbell is one of 454,532 litigation attorneys indexed nationally. Browse litigation 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 Los Angeles 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 Los Angeles or all attorneys in California.

Frequently Asked

Common questions about Mark Douglas Campbell

Where is Mark Douglas Campbell's law office located?
Mark Douglas Campbell's law practice is located in Los Angeles, California. The firm is Sidley Austin LLP. You can contact the office directly through this profile page.
What practice areas does Mark Douglas Campbell handle?
Mark Douglas Campbell focuses on litigation. Each practice area listed reflects experience handling cases of that type in California.
How long has Mark Douglas Campbell practiced law?
Mark Douglas Campbell has 31+ years of legal experience and has been licensed since 1995.
Where did Mark Douglas Campbell go to law school?
Mark Douglas Campbell earned their education at (J.D., 1995); (B.S., 1992).
How can I contact Mark Douglas Campbell for a consultation?
You can contact Mark Douglas Campbell 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.
University of California, Los Angeles
- 1995
B.S.
California State University, Northridge
- 1992

Bar Admissions

California
Admitted: 1995
U.S. District Court, Central District of California
Admitted: 1995
U.S. District Court, Northern District of California
Admitted: 1997
U.S. District Court, Eastern District of California
Admitted: 1997
U.S. District Court, Southern District of California
Admitted: 1998

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