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Atty. Peter A. Sink

Atty. Peter A. Sink

PETER A. SINK, a Shareholder with the Firm and chair of its worker’s compensation defense practice group, began his legal career as a Plaintiff/Petitioner litigation attorney.

Chicago Chicago 33 yrs experience 33 year
Call (872) 270-8545 Book Appointment

Profile Summary

About Peter A. Sink at a glance

Peter A. Sink is a Partner based in Chicago, Illinois, practforg at Leahy, Eisenberg & Fraenkel, Ltd.. They haand 33+ years of legal experience, licensed to practice since 1993. Admitted to practice in Illinois (1993). Educated at The John Marshall Law School J.D. (—) and Illinois State University B.A. Political Science (—). Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • PETER A. SINK, a Shareholder with the Firm and chair of its worker’s compensation defense practice group, began his legal career as a Plaintiff/Petitioner litigation attorney
  • He was responsible for all aspects of case management from initial interview of the client to the selection of jurors and trial
  • Mr. Sink brings invaluable experience to the Defense/Respondent side of law with his intimate knowledge of the mindset of the arguments and legal strategy employed by opposing counsel
  • This experience gives the respondent client added leverage in the negotiation and closure of claims files
  • Mr. Sink's primary responsibilities include case management from initial assignment through arbitration and review, including initial case analysis
  • drafting of initial reports to clients, drafting of quarterly status reports and all client correspondence
  • researching and drafting memoranda on legal and medical issues
  • conducting settlement negotiations
  • preparing and presenting witnesses and physicians for depositions and trial testimony
  • preparing motions, proposed decisions, statements of exception and Circuit Court briefs
  • presenting motions and oral arguments before Arbitrators and Commissioners
  • and litigating Arbitration hearings, as well as bench trials in the civil courts
  • He has significant litigation and successful jury trial experience, both at the Illinois Worker's Compensation Commission and in the various local Circuit Courts
  • Mr. Sink has also been an invited lecturer for various corporations across the country and is an active member of Illinois State Bar Association, Illinois Workers' Compensation Lawyers Association, and Chicago Bar Association
  • Mr. Sink is admitted to practice in the State of Illinois and the United States District Court for the Northern District of Illinois
  • Mr. Sink is a graduate of the Illinois State University in Political Science (B.A.), and The John Marshall Law School (J.D.)
  • Memberships Member of Federal District Court Bar, Northern District of Illinois, December 2006 Illinois State Bar Association Illinois Workers' Compensation Lawyers Association Chicago Bar Association

Jurisdictional Context

Why local counsel matters in Illinois

Practforg law in Illinois. Legal matters in Illinois are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantiand 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 andnue, and the substantiand 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 A. Sink

Where is Peter A. Sink's law office located?
Peter A. Sink's law practice is located in Chicago, Illinois. The firm is Leahy, Eisenberg & Fraenkel, Ltd.. You can contact the office directly through this profile page.
How long has Peter A. Sink practiced law?
Peter A. Sink has 33+ years of legal experience and has been licensed since 1993.
Where did Peter A. Sink go to law school?
Peter A. Sink earned their education at (—); (—).
How can I contact Peter A. Sink for a consultation?
You can contact Peter A. Sink directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

The John Marshall Law School J.D.
- In Progress
Illinois State University B.A. Political Science
- In Progress

Bar Admissions

Illinois
Admitted: 1993

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