Atty. Mark A. Lyon

Atty. Mark A. Lyon

Mark A. Lyon is a lawyer.

Wheaton Wheaton 40 Years Experience 40 year
Call (224) 561-5759

Profile Summary

About Mark A. Lyon at a glance

Mark A. Lyon is an attorney based in Wheaton, Illinois. They have 40+ years of legal experience, licensed to practice since 1986. Admitted to practice in Illinois (1986). Serves clients in Wheaton, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark A. Lyon is a lawyer
  • Mark has been licensed for 40 years
  • Mark practices in Wheaton, IL

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 Wheaton 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 venue, 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 Wheaton or all attorneys in Illinois.

Frequently Asked

Common questions about Mark A. Lyon

Where is Mark A. Lyon's law office located?
Mark A. Lyon's law practice is located in Wheaton, Illinois. You can contact the office directly through this profile page.
How long has Mark A. Lyon practiced law?
Mark A. Lyon has 40+ years of legal experience and has been licensed since 1986.
How can I contact Mark A. Lyon for a consultation?
You can contact Mark A. Lyon 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.

Bar Admissions

Illinois
Admitted: 1986

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