Atty. John J. O'Leary

Atty. John J. O'Leary

John J. O'Leary is a lawyer practicing construction law and litigation, condominium law, real estate development and 1 other area of law.

Chicago Chicago 46 yrs experience 46 year
Call (312) 535-4941 Book Appointment

Profile Summary

About John J. O'Leary at a glance

John J. O'Leary is a Member based in Chicago, Illinois, practicing at O'Leary Law Firm, LLC. They have 46+ years of legal experience, licensed to practice since 1980. Their practice focuses on business, real estate, construction, and hoa. Admitted to practice in Illinois (1980). Educated at Northwestern University School of Law J.D. (—) and University of Illinois B.A. (—). Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John J. O'Leary is a lawyer practicing construction law and litigation, condominium law, real estate development and 1 other area of law
  • John J. received a B.A. degree from University of Illinois, and has been licensed for 46 years
  • John J. practices at O'Leary Law Firm, LLC in Chicago, IL

Practice Areas Explained

John J. O'Leary's Areas of Practice

Each practice area below reflects the types of cases John J. O'Leary 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.

John J. O'Leary is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Illinois →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

John J. O'Leary is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Illinois →

Construction Law

John J. O'Leary is one of 40,689 construction attorneys indexed nationally. Browse construction attorneys in Illinois →

HOA & Condominium Law

John J. O'Leary is one of 5,637 hoa attorneys indexed nationally. Browse hoa 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 John J. O'Leary

Where is John J. O'Leary's law office located?
John J. O'Leary's law practice is located in Chicago, Illinois. The firm is O'Leary Law Firm, LLC. You can contact the office directly through this profile page.
What practice areas does John J. O'Leary handle?
John J. O'Leary focuses on business, real estate, construction, hoa. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has John J. O'Leary practiced law?
John J. O'Leary has 46+ years of legal experience and has been licensed since 1980.
Where did John J. O'Leary go to law school?
John J. O'Leary earned their education at (—); (—).
How can I contact John J. O'Leary for a consultation?
You can contact John J. O'Leary 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

Northwestern University School of Law J.D.
- In Progress
University of Illinois B.A.
- In Progress

Bar Admissions

Illinois
Admitted: 1980

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