Atty. Jason Jon Dejonker

Atty. Jason Jon Dejonker

Jason Jon Dejonker is a lawyer practicing chapter 11 bankruptcy, financial markets and services, contracts & agreements and 11 other areas of law. Jason received a B.A. degree from University of Illinois, Urbana-Champaign in 1997, and has been licensed for 26 years.

Chicago Chicago 26 yrs experience 26 year
Call (224) 561-5287 Book Appointment

Profile Summary

About Jason Jon Dejonker at a glance

Jason Jon Dejonker is an Attorney based in Chicago, Illinois, practicing at Bryan Cave Leighton Paisner LLP. They have 26+ years of legal experience, licensed to practice since 2000. Their practice focuses on contracts, business, bankruptcy, chapter 11, and m&a. Admitted to practice in Illinois U.S. District Court, Northern District of Illinois U.S. District Court, Western District of (2000). Educated at University of Illinois College of Law (J.D., 2000) and University of Illinois, Urbana-Champaign (B.A., 1997). Active member of Chicago and Illinois State Bar Associations. Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Jason Jon Dejonker is a lawyer practicing chapter 11 bankruptcy, financial markets and services, contracts & agreements and 11 other areas of law
  • Jason received a B.A. degree from University of Illinois, Urbana-Champaign in 1997, and has been licensed for 26 years
  • Jason practices at Bryan Cave Leighton Paisner LLP in Chicago, IL

Practice Areas Explained

Jason Jon Dejonker's Areas of Practice

Each practice area below reflects the types of cases Jason Jon Dejonker handles, with a brief overview of what that area of law covers.

Contracts

Jason Jon Dejonker is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in Illinois →

Business & Corporate Law

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

Jason Jon Dejonker is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Illinois →

Bankruptcy & Debt

A bankruptcy attorney can help you eliminate debt, stop creditor harassment, and protect your home through Chapter 7 or Chapter 13.

Jason Jon Dejonker is one of 105,321 bankruptcy attorneys indexed nationally. Browse bankruptcy attorneys in Illinois →

Chapter 11 Bankruptcy

Jason Jon Dejonker is one of 5,841 chapter 11 attorneys indexed nationally. Browse chapter 11 attorneys in Illinois →

Mergers & Acquisitions

Jason Jon Dejonker is one of 49,731 m&a attorneys indexed nationally. Browse m&a 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 Jason Jon Dejonker

Where is Jason Jon Dejonker's law office located?
Jason Jon Dejonker's law practice is located in Chicago, Illinois. The firm is Bryan Cave Leighton Paisner LLP. You can contact the office directly through this profile page.
What practice areas does Jason Jon Dejonker handle?
Jason Jon Dejonker focuses on contracts, business, bankruptcy, chapter 11, m&a. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Jason Jon Dejonker practiced law?
Jason Jon Dejonker has 26+ years of legal experience and has been licensed since 2000.
Where did Jason Jon Dejonker go to law school?
Jason Jon Dejonker earned their education at (J.D., 2000); (B.A., 1997).
How can I contact Jason Jon Dejonker for a consultation?
You can contact Jason Jon Dejonker 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 Illinois College of Law
- 2000
B.A.
University of Illinois, Urbana-Champaign
- 1997

Bar Admissions

Illinois U.S. District Court, Northern District of Illinois U.S. District Court, Western District of
Admitted: 2000

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