Atty. John Carol Lorentzen

Atty. John Carol Lorentzen

John Carol Lorentzen is a lawyer practicing corporate tax planning, corporate taxation, federal income tax and 6 other areas of law. John received a B.A. degree from Drake University in 1977, and has been licensed for 46 years.

Chicago Chicago 46 yrs experience 46 year
Call (312) 428-5660 Book Appointment

Profile Summary

About John Carol Lorentzen at a glance

John Carol Lorentzen is a Partner based in Chicago, Illinois, practicing at Winston & Strawn LLP. They have 46+ years of legal experience, licensed to practice since 1980. Their practice focuses on business, real estate, tax, and energy. Admitted to practice in Illinois (1980) and U.S. District Court, Northern District of Illinois and U.S. Tax Court (1980). Educated at University of Chicago (J.D., 1980) and Drake University (B.A. Drake, 1977). Active member of American Bar Association. Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Carol Lorentzen is a lawyer practicing corporate tax planning, corporate taxation, federal income tax and 6 other areas of law
  • John received a B.A. degree from Drake University in 1977, and has been licensed for 46 years
  • John practices at Winston & Strawn LLP in Chicago, IL

Practice Areas Explained

John Carol Lorentzen's Areas of Practice

Each practice area below reflects the types of cases John Carol Lorentzen 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 Carol Lorentzen 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 Carol Lorentzen is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Illinois →

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

John Carol Lorentzen is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Illinois →

Energy & Utilities Law

Energy attorneys for oil & gas, renewables, utility regulation, and energy sector transactions.

John Carol Lorentzen is one of 36,230 energy attorneys indexed nationally. Browse energy 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 Carol Lorentzen

Where is John Carol Lorentzen's law office located?
John Carol Lorentzen's law practice is located in Chicago, Illinois. The firm is Winston & Strawn LLP. You can contact the office directly through this profile page.
What practice areas does John Carol Lorentzen handle?
John Carol Lorentzen focuses on business, real estate, tax, energy. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has John Carol Lorentzen practiced law?
John Carol Lorentzen has 46+ years of legal experience and has been licensed since 1980.
Where did John Carol Lorentzen go to law school?
John Carol Lorentzen earned their education at (J.D., 1980); (B.A. Drake, 1977).
How can I contact John Carol Lorentzen for a consultation?
You can contact John Carol Lorentzen 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.
University of Chicago
- 1980
B.A. Drake
Drake University
- 1977

Bar Admissions

Illinois
Admitted: 1980
U.S. District Court, Northern District of Illinois and U.S. Tax Court
Admitted: 1980

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