Atty. Ryan James Rettmann

Atty. Ryan James Rettmann

Ryan James Rettmann is a lawyer practicing business law, public finance & tax exempt finance, corporate law and 3 other areas of law. Ryan received a B.A. degree from University of Michigan in 2002, and has been licensed for 20 years.

Chicago Chicago 20 yrs experience 20 year
Call (224) 561-4506 Book Appointment

Profile Summary

About Ryan James Rettmann at a glance

Ryan James Rettmann is an Attorney based in Chicago, Illinois, practicing at Mayer Brown Llp. They have 20+ years of legal experience, licensed to practice since 2006. Their practice focuses on formation, business, tax, and securities. Admitted to practice in New York (2006), Illinois (2007), and Michigan (2011). Educated at University of Michigan Law School (J.D., 2005) and University of Michigan (B.A. Economics, 2002). Active member of New York State and American Bar Associations. Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Ryan James Rettmann is a lawyer practicing business law, public finance & tax exempt finance, corporate law and 3 other areas of law
  • Ryan received a B.A. degree from University of Michigan in 2002, and has been licensed for 20 years
  • Ryan practices at Mayer Brown LLP in Chicago, IL

Practice Areas Explained

Ryan James Rettmann's Areas of Practice

Each practice area below reflects the types of cases Ryan James Rettmann handles, with a brief overview of what that area of law covers.

Business Formation

Ryan James Rettmann is one of 35,584 formation attorneys indexed nationally. Browse formation attorneys in Illinois →

Business & Corporate Law

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

Ryan James Rettmann is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Illinois →

Tax Law

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

Ryan James Rettmann is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Illinois →

Securities Law

Ryan James Rettmann is one of 64,529 securities attorneys indexed nationally. Browse securities 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 Ryan James Rettmann

Where is Ryan James Rettmann's law office located?
Ryan James Rettmann's law practice is located in Chicago, Illinois. The firm is Mayer Brown Llp. You can contact the office directly through this profile page.
What practice areas does Ryan James Rettmann handle?
Ryan James Rettmann focuses on formation, business, tax, securities. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Ryan James Rettmann practiced law?
Ryan James Rettmann has 20+ years of legal experience and has been licensed since 2006.
Where did Ryan James Rettmann go to law school?
Ryan James Rettmann earned their education at (J.D., 2005); (B.A. Economics, 2002).
How can I contact Ryan James Rettmann for a consultation?
You can contact Ryan James Rettmann 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 Michigan Law School
- 2005
B.A. Economics
University of Michigan
- 2002

Bar Admissions

New York
Admitted: 2006
Illinois
Admitted: 2007
Michigan
Admitted: 2011

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