Atty. Daniel K. O'Toole

Atty. Daniel K. O'Toole

Daniel K. O'Toole is a lawyer practicing employment & labor, litigation.

St. Louis St. Louis 36 yrs experience 36 year
Call (314) 896-2061 Book Appointment

Profile Summary

About Daniel K. O'Toole at a glance

Daniel K. O'Toole is a Partner based in St. Louis, Missouri, practicing at Armstrong Teasdale LLP. They have 36+ years of legal experience, licensed to practice since 1990. Their practice focuses on employment and litigation. Admitted to practice in Missouri (1990), Illinois (1991), and Arkansas (2016). Educated at University of Missouri - Columbia School of Law (J.D., 1990) and Southwest Missouri State University (B.A., 1987). Recognitions include AV Preeminent. Serands clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Daniel K. O'Toole is a lawyer practicing employment & labor, litigation
  • Daniel received a B.A. degree from Southwest Missouri State University in 1987, and has been licensed for 36 years
  • Daniel practices at Armstrong Teasdale LLP in St. Louis, MO

Practice Areas Explained

Daniel K. O'Toole's Areas of Practice

Each practice area below reflects the types of cases Daniel K. O'Toole handles, with a brief overview of what that area of law covers.

Employment Law

Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.

Daniel K. O'Toole is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in Missouri →

Civil Litigation

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

Daniel K. O'Toole is one of 454,532 litigation attorneys indexed nationally. Browse litigation 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 Daniel K. O'Toole

Where is Daniel K. O'Toole's law office located?
Daniel K. O'Toole'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 Daniel K. O'Toole handle?
Daniel K. O'Toole focuses on employment, litigation. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Daniel K. O'Toole practiced law?
Daniel K. O'Toole has 36+ years of legal experience and has been licensed since 1990.
Where did Daniel K. O'Toole go to law school?
Daniel K. O'Toole earned their education at (J.D., 1990); (B.A., 1987).
How can I contact Daniel K. O'Toole for a consultation?
You can contact Daniel K. O'Toole 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 Daniel K. O'Toole received?
Daniel K. O'Toole's notable recognition includes: AV Preeminent.

Education

J.D.
University of Missouri - Columbia School of Law
- 1990
B.A.
Southwest Missouri State University
- 1987

Awards

AV Preeminent

Bar Admissions

Missouri
Admitted: 1990
Illinois
Admitted: 1991
Arkansas
Admitted: 2016

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