Atty. Mark L. Stoneman

Atty. Mark L. Stoneman

Mark L. Stoneman is a lawyer practicing biotechnology/life sciences, mergers and acquisitions, business services and 1 other area of law.

St. Louis St. Louis 30 yrs experience 30 year
Call (309) 718-8598 Book Appointment

Profile Summary

About Mark L. Stoneman at a glance

Mark L. Stoneman is a Partner based in St. Louis, Missouri, practicing at Armstrong Teasdale LLP. They have 30+ years of legal experience, licensed to practice since 1996. Their practice focuses on business and m&a. Admitted to practice in Missouri (1996) and Illinois (1997). Educated at University of Missouri - Columbia School of Law (J.D., 1996) and University of Missouri - Columbia (B.S., 1993). Recognitions include AV Preeminent. Serands clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark L. Stoneman is a lawyer practicing biotechnology/life sciences, mergers and acquisitions, business services and 1 other area of law
  • Mark received a B.S. degree from University of Missouri - Columbia in 1993, and has been licensed for 30 years
  • Mark practices at Armstrong Teasdale LLP in St. Louis, MO

Practice Areas Explained

Mark L. Stoneman's Areas of Practice

Each practice area below reflects the types of cases Mark L. Stoneman 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.

Mark L. Stoneman is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Missouri →

Mergers & Acquisitions

Mark L. Stoneman is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys in Missouri →

Jurisdictional Context

Why local counsel matters in Missouri

Practicing law in Missouri. Legal matters in Missouri are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in St. Louis are typically filed in the local municipal court or the appropriate Missouri state district court, depending on subject matter and amount in controversy. An attorney licensed in Missouri 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 Missouri courts without local counsel or pro hac vice admission.

Looking for additional Missouri attorneys? Browse all attorneys in St. Louis or all attorneys in Missouri.

Frequently Asked

Common questions about Mark L. Stoneman

Where is Mark L. Stoneman's law office located?
Mark L. Stoneman's law practice is located in St. Louis, Missouri. The firm is Armstrong Teasdale LLP. You can contact the office directly through this profile page.
What practice areas does Mark L. Stoneman handle?
Mark L. Stoneman focuses on business, m&a. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Mark L. Stoneman practiced law?
Mark L. Stoneman has 30+ years of legal experience and has been licensed since 1996.
Where did Mark L. Stoneman go to law school?
Mark L. Stoneman earned their education at (J.D., 1996); (B.S., 1993).
How can I contact Mark L. Stoneman for a consultation?
You can contact Mark L. Stoneman 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.
What awards or recognition has Mark L. Stoneman received?
Mark L. Stoneman's notable recognition includes: AV Preeminent.

Education

J.D.
University of Missouri - Columbia School of Law
- 1996
B.S.
University of Missouri - Columbia
- 1993

Awards

AV Preeminent

Bar Admissions

Missouri
Admitted: 1996
Illinois
Admitted: 1997

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