Atty. Peter Sullivan
Peter Sullivan is a lawyer practicing matrimonial law, trial practice, appellate practice and 2 other areas of law. Peter received a B.A. degree from University of Massachusetts in 1977, and has been licensed for 38 years.
Appellate Practice & More Attorney · Serving Chicago, IL · 38+ Years Experience
Profile Summary
About Peter Sullivan at a Glance
Peter Sullivan is a Member based in Chicago, Illinois, practicing at Attorney Sullivan & Associates LLC. They have 38+ years of legal experience, licensed to practice since 1988. Their practice focuses on family law, litigation, adr, and appellate. Admitted to practice in New York (1988), U.S. District Court, Southern District of New York (1988), U.S. District Court, Eastern District of New York (1988), and U.S. Court of Appeals, Second Circuit (1994). Educated at Fordham University School of Law (J.D., 1987) and University of Massachusetts (B.A., 1977). Recognitions include AV Preeminent. Active member of The Association of the Bar of the City of New York. Serves clients in Chicago, IL and the surrounding metropolitan area.
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About Peter Sullivan
- Peter Sullivan is a lawyer practicing matrimonial law, trial practice, appellate practice and 2 other areas of law
- Peter received a B.A. degree from University of Massachusetts in 1977, and has been licensed for 38 years
- Peter practices at Attorney Sullivan & Associates LLC in Chicago, IL
Practice Areas Explained
Peter Sullivan's Areas of Legal Practice
Each practice area below reflects the types of cases Peter Sullivan handles, with a practical overview of what that area of law involves and how it may apply to your situation in Chicago.
Family Law in Chicago
Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.
Peter Sullivan is one of 185,688 family law attorneys indexed nationally. Browse family law attorneys in Illinois →
Civil Litigation in Chicago
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Peter Sullivan is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →
Mediation & Arbitration in Chicago
Mediators and arbitrators for civil, commercial, family, and employment dispute resolution.
Peter Sullivan is one of 73,315 adr attorneys indexed nationally. Browse adr attorneys in Illinois →
Appellate Practice in Chicago
Appellate attorneys for civil and criminal appeals at state and federal court.
Peter Sullivan is one of 85,572 appellate attorneys indexed nationally. Browse appellate attorneys in Illinois →
Jurisdictional Context
Why Local Counsel Matters in Chicago
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.
Chicago Courts and Legal Process
Choosing a Chicago-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 Illinois attorneys? Browse all attorneys in Chicago or all attorneys in Illinois.
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Professional Profile
Why Clients in Chicago Choose Peter Sullivan
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 Sullivan's practice in the field of family law, litigation, adr, and appellate.
Decade-Tested Legal Experience
Peter Sullivan brings 38+ 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 New York, U.S. District Court, Southern District of New York, and U.S. District Court, Eastern District of New York, Peter Sullivan can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering family law, litigation, and adr, Peter Sullivan can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Chicago
A Chicago-based practice means Peter Sullivan 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 Sullivan Handles in Chicago
Below is a representative sample of the types of matters Peter Sullivan has experience with under Illinois 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 Sullivan directly to discuss the specifics of your situation.
Search Reference
How People Find Peter Sullivan Online
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Peter Sullivan's Practice Areas & Specializations
Education & Law School Background
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