Atty. Peter Ivan Ostroff
Peter Ivan Ostroff is a lawyer practicing complex commercial litigation, international arbitration (commercial and treaty), trade secret and unfair competition litigation and 6 other areas of law. Peter received a B.A. degree from Washington University in 1964, and has been licensed for 59 years.
Complex Commercial Litigation & More Attorney · Serving Los Angeles, CA · 59+ Years Experience
Profile Summary
About Peter Ivan Ostroff at a Glance
Peter Ivan Ostroff is a Partner based in Los Angeles, California, practicing at Sidley Austin LLP. They have 59+ years of legal experience, licensed to practice since 1967. Their practice focuses on discrimination, employment, business, ip, and class action. Admitted to practice in Illinois (1967) and California (1970). Educated at The University of Chicago Law School (J.D., 1967) and Washington University (B.A., 1964). Recognitions include AV Preeminent. Serves clients in Los Angeles, CA and the surrounding metropolitan area.
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About Peter Ivan Ostroff
- Peter Ivan Ostroff is a lawyer practicing complex commercial litigation, international arbitration (commercial and treaty), trade secret and unfair competition litigation and 6 other areas of law
- Peter received a B.A. degree from Washington University in 1964, and has been licensed for 59 years
- Peter practices at Sidley Austin LLP in Los Angeles, CA
Practice Areas Explained
Peter Ivan Ostroff's Areas of Legal Practice
Each practice area below reflects the types of cases Peter Ivan Ostroff handles, with a practical overview of what that area of law involves and how it may apply to your situation in Los Angeles.
Workplace Discrimination in Los Angeles
Peter Ivan Ostroff is one of 7,049 discrimination attorneys indexed nationally. Browse discrimination attorneys in California →
Employment Law in Los Angeles
Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.
Peter Ivan Ostroff is one of 167,770 employment attorneys indexed nationally. Browse employment attorneys in California →
Business & Corporate Law in Los Angeles
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Peter Ivan Ostroff is one of 497,491 business attorneys indexed nationally. Browse business attorneys in California →
Intellectual Property in Los Angeles
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Peter Ivan Ostroff is one of 105,285 ip attorneys indexed nationally. Browse ip attorneys in California →
Class Action in Los Angeles
Peter Ivan Ostroff is one of 26,226 class action attorneys indexed nationally. Browse class action 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 Peter Ivan Ostroff
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 Peter Ivan Ostroff's practice in the field of discrimination, employment, business, ip, and class action.
Decade-Tested Legal Experience
Peter Ivan Ostroff brings 59+ 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 Illinois and California, Peter Ivan Ostroff can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering discrimination, employment, and business, Peter Ivan Ostroff 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 Peter Ivan Ostroff 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 Peter Ivan Ostroff Handles in Los Angeles
Below is a representative sample of the types of matters Peter Ivan Ostroff 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 Peter Ivan Ostroff directly to discuss the specifics of your situation.
Search Reference
How People Find Peter Ivan Ostroff Online
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Peter Ivan Ostroff's Practice Areas & Specializations
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