Atty. Peter D. Sullivan
Peter Sullivan practices in trial and litigation of complex professional liability and commercial litigation cases, including actions against accountants and attorneys, director and officer liability and coverage cases, consumer class action cases and breach of contract cases. Mr.
Profile Summary
About Peter D. Sullivan at a glance
Peter D. Sullivan is a business and litigation attorney based in Chicago, Illinois, practicing at Hinshaw & Culbertson LLP. Educated at Loyola University Chicago (J.D., 1983) and University of Notre Dame (BA, 1980). Recognitions include Best Lawyers in America — Commercial Litigation (2026), Best Lawyers in America — Additional Areas of Practice: (2026), and Best Lawyers in America — Legal Malpractice Law - Defendants (2026). Serves clients in Chicago, IL and the surrounding metropolitan area.
Want to Get Service From This Attorney?
Sign up free and choose one of the two methods below.
Have a legal question? Sign up free, submit it through the Ask the Attorney module and receive a focused answer from a specialist.
- Free to ask a question
- Answers from specialist attorneys
- Optional private / anonymous question
Request an online video meeting or an in-person consultation at the attorney's office. Pick a time that works for you and share the details securely.
- Online video meeting
- In-person at the attorney's office
- Secure messaging and payment
About
- Peter Sullivan practices in trial and litigation of complex professional liability and commercial litigation cases, including actions against accountants and attorneys, director and officer liability and coverage cases, consumer class action cases and breach of contract cases
- Mr. Sullivan also focuses on lender liability suits, real estate litigation, UCC litigation, state and federal securities law claims, RICO claims, business tort litigation and common law fraud actions
Practice Areas Explained
Peter D. Sullivan's Areas of Practice
Each practice area below reflects the types of cases Peter D. Sullivan handles, with a brief overview of what that area of law covers.
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Peter D. Sullivan is one of 452,854 business attorneys indexed nationally. Browse business attorneys in Illinois →
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Peter D. Sullivan is one of 409,070 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →
Jurisdictional Context
Why local counsel matters in Illinois
Practicing law in Illinois. Legal matters in Illinois are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Chicago are typically filed in the local municipal court or the appropriate Illinois state district court, depending on subject matter and amount in controversy. An attorney licensed in Illinois 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 Illinois courts without local counsel or pro hac vice admission.
Looking for additional Illinois attorneys? Browse all attorneys in Chicago or all attorneys in Illinois.
Frequently Asked
Common questions about Peter D. Sullivan
Where is Peter D. Sullivan's law office located?
What practice areas does Peter D. Sullivan handle?
Where did Peter D. Sullivan go to law school?
How can I contact Peter D. Sullivan for a consultation?
What awards or recognition has Peter D. Sullivan received?
Practice Areas
Education
Awards
Reviews
No reviews yet.