Atty. Peter Obstler
Peter Obstler is a lawyer practicing california's proposition 65, commercial litigation, class actions and 9 other areas of law. Peter received a degree from Haverford College in 1981, and has been licensed for 35 years.
California's Proposition 65 & More Attorney · Serving San Francisco, CA · 35+ Years Experience
Profile Summary
About Peter Obstler at a Glance
Peter Obstler is a Partner based in San Francisco, California, practicing at Arnold & Porter LLP. They have 35+ years of legal experience, licensed to practice since 1991. Their practice focuses on business, ip, class action, zoning, and litigation. Admitted to practice in Connecticut (1991), California (1994), and California Supreme Judicial Court U.S. Court of Appeals, Federal Circuit U.S. Court of Appeals, Firs (1994). Educated at Haverford College (Bachelor, 1981). Recognitions include Peer Reviewed. Serves clients in San Francisco, CA and the surrounding metropolitan area.
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About Peter Obstler
- Peter Obstler is a lawyer practicing california's proposition 65, commercial litigation, class actions and 9 other areas of law
- Peter received a degree from Haverford College in 1981, and has been licensed for 35 years
- Peter practices at Arnold & Porter LLP in San Francisco, CA
Practice Areas Explained
Peter Obstler's Areas of Legal Practice
Each practice area below reflects the types of cases Peter Obstler handles, with a practical overview of what that area of law involves and how it may apply to your situation in San Francisco.
Business & Corporate Law in San Francisco
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Peter Obstler is one of 497,491 business attorneys indexed nationally. Browse business attorneys in California →
Intellectual Property in San Francisco
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Peter Obstler is one of 105,285 ip attorneys indexed nationally. Browse ip attorneys in California →
Class Action in San Francisco
Peter Obstler is one of 26,226 class action attorneys indexed nationally. Browse class action attorneys in California →
Land Use & Zoning in San Francisco
Peter Obstler is one of 39,875 zoning attorneys indexed nationally. Browse zoning attorneys in California →
Civil Litigation in San Francisco
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Peter Obstler is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in California →
Jurisdictional Context
Why Local Counsel Matters in San Francisco
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 San Francisco 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.
San Francisco Courts and Legal Process
Choosing a San Francisco-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 San Francisco or all attorneys in California.
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Professional Profile
Why Clients in San Francisco Choose Peter Obstler
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 Obstler's practice in the field of business, ip, class action, zoning, and litigation.
Decade-Tested Legal Experience
Peter Obstler brings 35+ 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 Connecticut, California, and California Supreme Judicial Court U.S. Court of Appeals, Federal Circuit U.S. Court of Appeals, Firs, Peter Obstler can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering business, ip, and class action, Peter Obstler can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in San Francisco
A San Francisco-based practice means Peter Obstler 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 Obstler Handles in San Francisco
Below is a representative sample of the types of matters Peter Obstler 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 Obstler directly to discuss the specifics of your situation.
Search Reference
How People Find Peter Obstler Online
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Peter Obstler's Practice Areas & Specializations
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