Atty. Constantine L. Trela, Jr.

Atty. Constantine L. Trela, Jr.

Constantine L. Trela, Jr. is a lawyer practicing securities & investment fraud, appellate, commercial litigation appeals and 6 other areas of law.

Chicago Chicago 47 yrs experience 47 year
Call (312) 912-9626 Book Appointment

Profile Summary

About Constantine L. Trela, Jr. at a glance

Constantine L. Trela, Jr. is a Partner based in Chicago, Illinois, practicing at Sidley Austin LLP. They have 47+ years of legal experience, licensed to practice since 1979. Their practice focuses on ip, class action, securities, consumer, and appellate. Admitted to practice in Illinois (1979), U.S. District Court, Northern District of Illinois (1979), U.S. District Court, Northern District of Illinois, including Trial Bar (1991), and U.S. Court of Appeals, Eleventh Circuit U.S. Court of Appeals, Third, Fifth, Sixth, Seventh, Eight, (2009). Educated at Northwestern University School of Law (J.D., 1979) and Northwestern University (B.A., 1976). Recognitions include AV Preeminent. Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Constantine L. Trela, Jr. is a lawyer practicing securities & investment fraud, appellate, commercial litigation appeals and 6 other areas of law
  • Constantine received a B.A. degree from Northwestern University in 1976, and has been licensed for 47 years
  • Constantine practices at Sidley Austin LLP in Chicago, IL

Practice Areas Explained

Constantine L. Trela, Jr.'s Areas of Practice

Each practice area below reflects the types of cases Constantine L. Trela, Jr. handles, with a brief overview of what that area of law covers.

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

Constantine L. Trela, Jr. is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Illinois →

Class Action

Constantine L. Trela, Jr. is one of 26,424 class action attorneys indexed nationally. Browse class action attorneys in Illinois →

Securities Law

Constantine L. Trela, Jr. is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in Illinois →

Consumer Protection

Consumer protection attorneys for fraud, lemon law, debt harassment, and deceptive trade practices.

Constantine L. Trela, Jr. is one of 50,607 consumer attorneys indexed nationally. Browse consumer attorneys in Illinois →

Appellate Practice

Appellate attorneys for civil and criminal appeals at state and federal court.

Constantine L. Trela, Jr. is one of 86,319 appellate attorneys indexed nationally. Browse appellate 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 andnue, 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 Constantine L. Trela, Jr.

Where is Constantine L. Trela, Jr.'s law office located?
Constantine L. Trela, Jr.'s law practice is located in Chicago, Illinois. The firm is Sidley Austin LLP. You can contact the office directly through this profile page.
What practice areas does Constantine L. Trela, Jr. handle?
Constantine L. Trela, Jr. focuses on ip, class action, securities, consumer, appellate. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Constantine L. Trela, Jr. practiced law?
Constantine L. Trela, Jr. has 47+ years of legal experience and has been licensed since 1979.
Where did Constantine L. Trela, Jr. go to law school?
Constantine L. Trela, Jr. earned their education at (J.D., 1979); (B.A., 1976).
How can I contact Constantine L. Trela, Jr. for a consultation?
You can contact Constantine L. Trela, Jr. 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.
What awards or recognition has Constantine L. Trela, Jr. received?
Constantine L. Trela, Jr.'s notable recognition includes: AV Preeminent.

Education

J.D.
Northwestern University School of Law
- 1979
B.A.
Northwestern University
- 1976

Awards

AV Preeminent

Bar Admissions

Illinois
Admitted: 1979
U.S. District Court, Northern District of Illinois
Admitted: 1979
U.S. District Court, Northern District of Illinois, including Trial Bar
Admitted: 1991
U.S. Court of Appeals, Eleventh Circuit U.S. Court of Appeals, Third, Fifth, Sixth, Seventh, Eight,
Admitted: 2009

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