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Atty. William Mahl Barnes

Atty. William Mahl Barnes

William Mahl Barnes is a lawyer practicing commercial litigation, environmental litigation, litigation and 2 other areas of law. William received a B.A. degree from Northwestern University in 1992, and has been licensed for 27 years.

Chicago Chicago 27 yrs experience 27 year
Call (224) 452-5234 Book Appointment

Profile Summary

About William Mahl Barnes at a glance

William Mahl Barnes is a personal injury, business, product liability, and litigation attorney based in Chicago, Illinois. They have 27+ years of legal experience, licensed to practice since 1999. Admitted to practice in Illinois (1999) and U.S. District Court, Northern District of Illinois (1999). Educated at Northwestern University (J.D., 1999) and Northwestern University (B.A., 1992). Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Mahl Barnes is a lawyer practicing commercial litigation, environmental litigation, litigation and 2 other areas of law
  • William received a B.A. degree from Northwestern University in 1992, and has been licensed for 27 years
  • William practices in Chicago, IL

Practice Areas Explained

William Mahl Barnes's Areas of Practice

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

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

William Mahl Barnes is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Illinois →

Business & Corporate Law

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

William Mahl Barnes is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Illinois →

Product Liability

William Mahl Barnes is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in Illinois →

Civil Litigation

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

William Mahl Barnes is one of 454,532 litigation attorneys indexed nationally. Browse litigation 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 William Mahl Barnes

Where is William Mahl Barnes's law office located?
William Mahl Barnes's law practice is located in Chicago, Illinois. You can contact the office directly through this profile page.
What practice areas does William Mahl Barnes handle?
William Mahl Barnes focuses on personal injury, business, product liability, litigation. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has William Mahl Barnes practiced law?
William Mahl Barnes has 27+ years of legal experience and has been licensed since 1999.
Where did William Mahl Barnes go to law school?
William Mahl Barnes earned their education at (J.D., 1999); (B.A., 1992).
How can I contact William Mahl Barnes for a consultation?
You can contact William Mahl Barnes 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

J.D.
Northwestern University
- 1999
B.A.
Northwestern University
- 1992

Bar Admissions

Illinois
Admitted: 1999
U.S. District Court, Northern District of Illinois
Admitted: 1999

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