Atty. Gary Marc Sinclair

Atty. Gary Marc Sinclair

Gary Marc Sinclair is a lawyer practicing financial transactions, commodities compliance, commodities litigation and 3 other areas of law. Gary received a B.A. degree from Loyola University in 1974, and has been licensed for 49 years.

Chicago Chicago 49 Years Experience 49 year
Call (312) 481-8617

Profile Summary

About Gary Marc Sinclair at a glance

Gary Marc Sinclair is a Member based in Chicago, Illinois, practicing at Gary Marc Sinclair. They have 49+ years of legal experience, licensed to practice since 1977. Their practice focuses on contracts, litigation, and adr. Admitted to practice in Illinois (1977) and U.S. District Court, Northern District of Illinois (1977). Educated at Loyola University (J.D. Policy, 1977) and Loyola University (B.A. Policy, 1974). Serves clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Gary Marc Sinclair is a lawyer practicing financial transactions, commodities compliance, commodities litigation and 3 other areas of law
  • Gary received a B.A. degree from Loyola University in 1974, and has been licensed for 49 years
  • Gary practices at Gary Marc Sinclair in Chicago, IL

Practice Areas Explained

Gary Marc Sinclair's Areas of Practice

Each practice area below reflects the types of cases Gary Marc Sinclair handles, with a brief overview of what that area of law covers.

Contracts

Gary Marc Sinclair is one of 67,443 contracts attorneys indexed nationally. Browse contracts attorneys in Illinois →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Gary Marc Sinclair is one of 409,070 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →

Mediation & Arbitration

Mediators and arbitrators for civil, commercial, family, and employment dispute resolution.

Gary Marc Sinclair is one of 67,021 adr attorneys indexed nationally. Browse adr 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 Gary Marc Sinclair

Where is Gary Marc Sinclair's law office located?
Gary Marc Sinclair's law practice is located in Chicago, Illinois. The firm is Gary Marc Sinclair. You can contact the office directly through this profile page.
What practice areas does Gary Marc Sinclair handle?
Gary Marc Sinclair focuses on contracts, litigation, adr. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Gary Marc Sinclair practiced law?
Gary Marc Sinclair has 49+ years of legal experience and has been licensed since 1977.
Where did Gary Marc Sinclair go to law school?
Gary Marc Sinclair earned their education at (J.D. Policy, 1977); (B.A. Policy, 1974).
How can I contact Gary Marc Sinclair for a consultation?
You can contact Gary Marc Sinclair 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

J.D. Policy
Loyola University
- 1977
B.A. Policy
Loyola University
- 1974

Bar Admissions

Illinois
Admitted: 1977
U.S. District Court, Northern District of Illinois
Admitted: 1977

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