Atty. John Frederic Daum
John Frederic Daum is a lawyer practicing advertising, antitrust & trade law, appeals and 4 other areas of law. John received a B.A. degree from Harvard University, and has been licensed for 55 years.
Advertising & More Attorney · Serving Los Angeles, CA · 55+ Years Experience
Profile Summary
About John Frederic Daum at a Glance
John Frederic Daum is an Of Counsel based in Los Angeles, California, practicing at O'Melveny & Myers LLP. They have 55+ years of legal experience, licensed to practice since 1971. Their practice focuses on business, litigation, environmental, insurance, and appellate. Admitted to practice in District of Columbia (1971) and California U.S. District Court, Central, Northern, and Eastern Districts of California U.S. Court of (1972). Educated at Yale University (LL.B., 1969) and Harvard University B.A. summa cum laude Harvard University B.A. Phi Beta Kappa Yale Law Journal 1967-1969 (—). Recognitions include AV Preeminent. Active member of Committee on Federal Procedure, American Bar Association. Serves clients in Los Angeles, CA and the surrounding metropolitan area.
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About John Frederic Daum
- John Frederic Daum is a lawyer practicing advertising, antitrust & trade law, appeals and 4 other areas of law
- John received a B.A. degree from Harvard University, and has been licensed for 55 years
- John practices at O'Melveny & Myers LLP in Los Angeles, CA
Practice Areas Explained
John Frederic Daum's Areas of Legal Practice
Each practice area below reflects the types of cases John Frederic Daum handles, with a practical overview of what that area of law involves and how it may apply to your situation in Los Angeles.
Business & Corporate Law in Los Angeles
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
John Frederic Daum is one of 497,491 business attorneys indexed nationally. Browse business attorneys in California →
Civil Litigation in Los Angeles
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
John Frederic Daum is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in California →
Environmental Law in Los Angeles
Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.
John Frederic Daum is one of 55,977 environmental attorneys indexed nationally. Browse environmental attorneys in California →
Insurance Law in Los Angeles
Insurance attorneys for coverage disputes, bad faith claims, denied claims, and policy disputes.
John Frederic Daum is one of 120,903 insurance attorneys indexed nationally. Browse insurance attorneys in California →
Appellate Practice in Los Angeles
Appellate attorneys for civil and criminal appeals at state and federal court.
John Frederic Daum is one of 85,572 appellate attorneys indexed nationally. Browse appellate attorneys in California →
Jurisdictional Context
Why Local Counsel Matters in Los Angeles
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 venue, 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.
Los Angeles Courts and Legal Process
Choosing a Los Angeles-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional California attorneys? Browse all attorneys in Los Angeles or all attorneys in California.
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Professional Profile
Why Clients in Los Angeles Choose John Frederic Daum
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish John Frederic Daum's practice in the field of business, litigation, environmental, insurance, and appellate.
Decade-Tested Legal Experience
John Frederic Daum brings 55+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in District of Columbia and California U.S. District Court, Central, Northern, and Eastern Districts of California U.S. Court of, John Frederic Daum can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering business, litigation, and environmental, John Frederic Daum can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Los Angeles
A Los Angeles-based practice means John Frederic Daum attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues John Frederic Daum Handles in Los Angeles
Below is a representative sample of the types of matters John Frederic Daum has experience with under California law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact John Frederic Daum directly to discuss the specifics of your situation.
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How People Find John Frederic Daum Online
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John Frederic Daum's Practice Areas & Specializations
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