Atty. Mary Kostopoulos

Atty. Mary Kostopoulos

Mary Kostopoulos is a lawyer practicing business, antitrust / trade law, corporate law and 2 other areas of law. Mary received a M.A. degree from School of International Service, American University in 2003, and has been licensed for 24 years.

Lisle Lisle 24 yrs experience 24 year
Call (224) 801-2438 Book Appointment

Profile Summary

About Mary Kostopoulos at a glance

Mary Kostopoulos is a business and international attorney based in Lisle, Illinois. They have 24+ years of legal experience, licensed to practice since 2002. Admitted to practice in Illinois (2002), District of Columbia (2003), and New York (2008). Educated at School of International Service, American University (M.A. International, 2003) and Washington College of Law, American University (J.D., 2002). Active member of American Bar Association (Section of International Law) American Association of Exporters and Importers Hellenic American Bankers Association Illinois State Bar Association The District of Columbia Bar. Serands clients in Lisle, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mary Kostopoulos is a lawyer practicing business, antitrust / trade law, corporate law and 2 other areas of law
  • Mary received a M.A. degree from School of International Service, American University in 2003, and has been licensed for 24 years
  • Mary practices in Lisle, IL

Practice Areas Explained

Mary Kostopoulos's Areas of Practice

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

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Mary Kostopoulos is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Illinois →

International Law

International law attorneys for cross-border transactions, trade, foreign investment, and treaties.

Mary Kostopoulos is one of 40,133 international attorneys indexed nationally. Browse international 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 Lisle 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 Lisle or all attorneys in Illinois.

Frequently Asked

Common questions about Mary Kostopoulos

Where is Mary Kostopoulos's law office located?
Mary Kostopoulos's law practice is located in Lisle, Illinois. You can contact the office directly through this profile page.
What practice areas does Mary Kostopoulos handle?
Mary Kostopoulos focuses on business, international. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Mary Kostopoulos practiced law?
Mary Kostopoulos has 24+ years of legal experience and has been licensed since 2002.
Where did Mary Kostopoulos go to law school?
Mary Kostopoulos earned their education at (M.A. International, 2003); (J.D., 2002).
How can I contact Mary Kostopoulos for a consultation?
You can contact Mary Kostopoulos 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

M.A. International
School of International Service, American University
- 2003
J.D.
Washington College of Law, American University
- 2002

Bar Admissions

Illinois
Admitted: 2002
District of Columbia
Admitted: 2003
New York
Admitted: 2008

Reviews

These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.