Atty. Patrick John Ahern

Atty. Patrick John Ahern

Patrick John Ahern is a lawyer practicing antitrust and competition law, corporate compliance, litigation and 4 other areas of law. Patrick received a B.A. degree from Georgetown University in 1981, and has been licensed for 42 years.

Chicago Chicago 42 Years Experience 42 year
Call (312) 481-8617

Profile Summary

About Patrick John Ahern at a glance

Patrick John Ahern is a Partner based in Chicago, Illinois, practicing at Baker And Mckenzie Llp. They have 42+ years of legal experience, licensed to practice since 1984. Their practice focuses on business, litigation, and health care. Admitted to practice in Illinois (1984), U.S. District Court, Northern District of Illinois (1985), U.S. Court of Appeals, Seventh Circuit (1992), and U.S. Court of Appeals, Sixth Circuit (1993). Educated at University of Illinois College of Law (J.D., 1984) and Georgetown University (B.A., 1981). Recognitions include BV Distinguished. Serves clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Patrick John Ahern is a lawyer practicing antitrust and competition law, corporate compliance, litigation and 4 other areas of law
  • Patrick received a B.A. degree from Georgetown University in 1981, and has been licensed for 42 years
  • Patrick practices at Baker & McKenzie LLP in Chicago, IL

Practice Areas Explained

Patrick John Ahern's Areas of Practice

Each practice area below reflects the types of cases Patrick John Ahern 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.

Patrick John Ahern is one of 452,854 business attorneys indexed nationally. Browse business attorneys in Illinois →

Civil Litigation

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

Patrick John Ahern is one of 409,070 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →

Health Care Law

Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.

Patrick John Ahern is one of 59,895 health care attorneys indexed nationally. Browse health care 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 Patrick John Ahern

Where is Patrick John Ahern's law office located?
Patrick John Ahern's law practice is located in Chicago, Illinois. The firm is Baker And Mckenzie Llp. You can contact the office directly through this profile page.
What practice areas does Patrick John Ahern handle?
Patrick John Ahern focuses on business, litigation, health care. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Patrick John Ahern practiced law?
Patrick John Ahern has 42+ years of legal experience and has been licensed since 1984.
Where did Patrick John Ahern go to law school?
Patrick John Ahern earned their education at (J.D., 1984); (B.A., 1981).
How can I contact Patrick John Ahern for a consultation?
You can contact Patrick John Ahern 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 Patrick John Ahern received?
Patrick John Ahern's notable recognition includes: BV Distinguished.

Education

J.D.
University of Illinois College of Law
- 1984
B.A.
Georgetown University
- 1981

Awards

BV Distinguished

Bar Admissions

Illinois
Admitted: 1984
U.S. District Court, Northern District of Illinois
Admitted: 1985
U.S. Court of Appeals, Seventh Circuit
Admitted: 1992
U.S. Court of Appeals, Sixth Circuit
Admitted: 1993

Reviews

4.4
1 Review
5 0
4 0
3 0
2 0
1 0
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.