Atty. John William Moynihan

Atty. John William Moynihan

John William Moynihan is a lawyer practicing commercial litigation and disputes, financial services litigation, securities litigation & enforcement and 6 other areas of law. John received a B.S. degree from University of Illinois in 1988, and has been licensed for 33 years.

Downers Grove Downers Grove 33 yrs experience 33 year
Call (224) 561-5759 Book Appointment

Profile Summary

About John William Moynihan at a glance

John William Moynihan is a business, class action, and litigation attorney based in Downers Grove, Illinois. They have 33+ years of legal experience, licensed to practice since 1993. Admitted to practice in Illinois (1993). Educated at University of Michigan Law School (J.D., 1992) and University of Illinois (B.S. Accounting, 1988). Serands clients in Downers Grove, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John William Moynihan is a lawyer practicing commercial litigation and disputes, financial services litigation, securities litigation & enforcement and 6 other areas of law
  • John received a B.S. degree from University of Illinois in 1988, and has been licensed for 33 years
  • John practices in Downers Grove, IL

Practice Areas Explained

John William Moynihan's Areas of Practice

Each practice area below reflects the types of cases John William Moynihan 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 William Moynihan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Illinois →

Class Action

John William Moynihan is one of 26,424 class action attorneys indexed nationally. Browse class action attorneys in Illinois →

Civil Litigation

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

John William Moynihan 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 Downers Grove 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 Downers Grove or all attorneys in Illinois.

Frequently Asked

Common questions about John William Moynihan

Where is John William Moynihan's law office located?
John William Moynihan's law practice is located in Downers Grove, Illinois. You can contact the office directly through this profile page.
What practice areas does John William Moynihan handle?
John William Moynihan focuses on business, class action, litigation. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has John William Moynihan practiced law?
John William Moynihan has 33+ years of legal experience and has been licensed since 1993.
Where did John William Moynihan go to law school?
John William Moynihan earned their education at (J.D., 1992); (B.S. Accounting, 1988).
How can I contact John William Moynihan for a consultation?
You can contact John William Moynihan 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
- 1992
B.S. Accounting
University of Illinois
- 1988

Bar Admissions

Illinois
Admitted: 1993

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