Atty. Daniel R. O'Neill

Atty. Daniel R. O'Neill

Daniel R. O'Neill is a lawyer practicing business litigation.

St. Louis St. Louis 60 yrs experience 60 year
Call (314) 710-2940 Book Appointment

Profile Summary

About Daniel R. O'Neill at a glance

Daniel R. O'Neill is a business and litigation attorney based in St. Louis, Missouri. They have 60+ years of legal experience, licensed to practice since 1966. Admitted to practice in Missouri (1966). Educated at George Washington University (LL.M. St., 1967) and Holy Cross College (A.B., 1961). Recognitions include AV Preeminent. Serands clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Daniel R. O'Neill is a lawyer practicing business litigation
  • Daniel received a A.B. degree from Holy Cross College in 1961, and has been licensed for 60 years
  • Daniel practices in St. Louis, MO

Practice Areas Explained

Daniel R. O'Neill's Areas of Practice

Each practice area below reflects the types of cases Daniel R. O'Neill 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.

Daniel R. O'Neill is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Missouri →

Civil Litigation

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

Daniel R. O'Neill 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 R. O'Neill

Where is Daniel R. O'Neill's law office located?
Daniel R. O'Neill's law practice is located in St. Louis, Missouri. You can contact the office directly through this profile page.
What practice areas does Daniel R. O'Neill handle?
Daniel R. O'Neill focuses on business, litigation. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Daniel R. O'Neill practiced law?
Daniel R. O'Neill has 60+ years of legal experience and has been licensed since 1966.
Where did Daniel R. O'Neill go to law school?
Daniel R. O'Neill earned their education at (LL.M. St., 1967); (A.B., 1961).
How can I contact Daniel R. O'Neill for a consultation?
You can contact Daniel R. O'Neill 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 R. O'Neill received?
Daniel R. O'Neill's notable recognition includes: AV Preeminent.

Practice Areas

Education

LL.M. St.
George Washington University
- 1967
A.B.
Holy Cross College
- 1961

Awards

AV Preeminent

Bar Admissions

Missouri
Admitted: 1966

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