Atty. Mark Randall Oppenheimer

Atty. Mark Randall Oppenheimer

Mark Randall Oppenheimer is a lawyer practicing business trial and litigation, labor and employment, environmental law and natural resources and 5 other areas of law. Mark received a A.B. degree from Harvard University, and has been licensed for 49 years.

Los Angeles Los Angeles 49 yrs experience 49 year
Call (424) 359-1437 Book Appointment

Profile Summary

About Mark Randall Oppenheimer at a glance

Mark Randall Oppenheimer is a Partner based in Los Angeles, California, practicing at O'Melveny & Myers LLP. They have 49+ years of legal experience, licensed to practice since 1977. Their practice focuses on employment, business, white collar, litigation, and environmental. Admitted to practice in California (1977). Educated at University of Chicago J.D. 1977 Comment Editor University of Chicago J.D. The University of Chicago Law Review (—) and Harvard University A.B. summa cum laude Harvard University A.B. Phi Beta Kappa (—). Recognitions include AV Preeminent. Active member of Vice Chairman, Sub-Committee on Sports and Entertainment Law, Antitrust Section, American Bar Association. Serands clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Randall Oppenheimer is a lawyer practicing business trial and litigation, labor and employment, environmental law and natural resources and 5 other areas of law
  • Mark received a A.B. degree from Harvard University, and has been licensed for 49 years
  • Mark practices at O'Melveny & Myers LLP in Los Angeles, CA

Practice Areas Explained

Mark Randall Oppenheimer's Areas of Practice

Each practice area below reflects the types of cases Mark Randall Oppenheimer handles, with a brief overview of what that area of law covers.

Employment Law

Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.

Mark Randall Oppenheimer is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in California →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Mark Randall Oppenheimer is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

White Collar Crimes

Mark Randall Oppenheimer is one of 20,025 white collar attorneys indexed nationally. Browse white collar attorneys in California →

Civil Litigation

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

Mark Randall Oppenheimer is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in California →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

Mark Randall Oppenheimer is one of 56,434 environmental attorneys indexed nationally. Browse environmental 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 Randall Oppenheimer

Where is Mark Randall Oppenheimer's law office located?
Mark Randall Oppenheimer's law practice is located in Los Angeles, California. The firm is O'Melveny & Myers LLP. You can contact the office directly through this profile page.
What practice areas does Mark Randall Oppenheimer handle?
Mark Randall Oppenheimer focuses on employment, business, white collar, litigation, environmental. Each practice area listed reflects experience handling cases of that type in California.
How long has Mark Randall Oppenheimer practiced law?
Mark Randall Oppenheimer has 49+ years of legal experience and has been licensed since 1977.
Where did Mark Randall Oppenheimer go to law school?
Mark Randall Oppenheimer earned their education at (—); (—).
How can I contact Mark Randall Oppenheimer for a consultation?
You can contact Mark Randall Oppenheimer 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 Mark Randall Oppenheimer received?
Mark Randall Oppenheimer's notable recognition includes: AV Preeminent.

Education

University of Chicago J.D. 1977 Comment Editor University of Chicago J.D. The University of Chicago Law Review
- In Progress
Harvard University A.B. summa cum laude Harvard University A.B. Phi Beta Kappa
- In Progress

Awards

AV Preeminent

Bar Admissions

California
Admitted: 1977

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