Atty. John S. Mrowiec

Atty. John S. Mrowiec

Listed: 2014 Best Lawyer - Construction Law - Chicago; Top Ten Construction Lawyers, Leading Lawyers Network, 2008-2010; The Best Lawyers in America, Construction Law, 2006-2010; Chambers USA, America's Leading Lawyers for Business, Construction Law, 2004-2010; Illinois Super Lawyers, Construction Litigation, 2005-2010. Lead Articles and Notes Editor, DePaul Law Review, 1982-1983.

Chicago Chicago 43 yrs experience 43 year
Call (312) 450-3217 Book Appointment

Profile Summary

About John S. Mrowiec at a glance

John S. Mrowiec is a Managing Partner based in Chicago, Illinois, practicing at Conway & Mrowiec Attorneys LLLP. They have 43+ years of legal experience, licensed to practice since 1983. Their practice focuses on construction and adr. Admitted to practice in Illinois (1983), U.S. District Courts, Northern District of Illinois Trial Bar, U.S. District Court, Eastern District (1985), and Indiana (2007). Educated at DePaul University (J.D., 1983) and Northern Illinois University (B.A., 1980). Recognitions include AV Preeminent. Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

Listed

  • 2014 Best Lawyer - Construction Law - Chicago
  • Top Ten Construction Lawyers, Leading Lawyers Network, 2008-2010
  • The Best Lawyers in America, Construction Law, 2006-2010
  • Chambers USA, America's Leading Lawyers for Business, Construction Law, 2004-2010
  • Illinois Super Lawyers, Construction Litigation, 2005-2010
  • Lead Articles and Notes Editor, DePaul Law Review, 1982-1983

Author

Law Columnist, Midwest Construction, McGraw-Hill, May 2000-

Co-Author

  • "Original Contractor's Lien on Private Projects," Illinois Mechanics Liens, IICLE (1994, 2000, 2004, 2007, 2010 eds.)
  • "Pre-Construction Issues for the Contractor or Construction Manager," IICLE (2009 ed.)
  • "Changes that Result from Delays and Interferences," Construction Change Order Claims 2d (Aspen 2005)
  • Author/Speaker: "AIA Contract Documents," 2004-2010
  • "Public Construction Contracting" (2001-2004)
  • "Construction Claims" (2000-2006)
  • "Construction Management & Design-Build," 2002- 2005
  • "Construction Delay Claims," 2000-2006
  • "Construction Bidding Process," 2008
  • "Cumulative Impact Claims," 2007
  • "Electronic Discovery in Construction Disputes," 2005, 2007
  • "Nelson Energy Project," 2005
  • "School & University Construction Delay Claims Decisions," 2008
  • "Special Mechanics Lien Issues with Newly Constructed Condominium Buildings," 2008
  • "Impact of Exculpatory Clauses on Construction Delay Claims," 2007
  • Instructor, Construction Law, Real Estate Center, DePaul University, 2002-2006

Practice Areas Explained

John S. Mrowiec's Areas of Practice

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

Construction Law

John S. Mrowiec is one of 40,689 construction attorneys indexed nationally. Browse construction attorneys in Illinois →

Mediation & Arbitration

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

John S. Mrowiec is one of 73,906 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 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 S. Mrowiec

Where is John S. Mrowiec's law office located?
John S. Mrowiec's law practice is located in Chicago, Illinois. The firm is Conway & Mrowiec Attorneys LLLP. You can contact the office directly through this profile page.
What practice areas does John S. Mrowiec handle?
John S. Mrowiec focuses on construction, adr. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has John S. Mrowiec practiced law?
John S. Mrowiec has 43+ years of legal experience and has been licensed since 1983.
Where did John S. Mrowiec go to law school?
John S. Mrowiec earned their education at (J.D., 1983); (B.A., 1980).
How can I contact John S. Mrowiec for a consultation?
You can contact John S. Mrowiec 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 John S. Mrowiec received?
John S. Mrowiec's notable recognition includes: AV Preeminent.

Education

J.D.
DePaul University
- 1983
B.A.
Northern Illinois University
- 1980

Awards

AV Preeminent

Bar Admissions

Illinois
Admitted: 1983
U.S. District Courts, Northern District of Illinois Trial Bar, U.S. District Court, Eastern District
Admitted: 1985
Indiana
Admitted: 2007

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