Atty. Dennis E. O'Connell
Dennis E. O'Connell is a lawyer practicing commercial, commercial litigation, insurance and 3 other areas of law.
Commercial & More Attorney · Serving St. Louis, MO · 57+ Years Experience
Profile Summary
About Dennis E. O'Connell at a Glance
Dennis E. O'Connell is a Partner based in St. Louis, Missouri, practicing at Bryan Cave Leighton Paisner LLP. They have 57+ years of legal experience, licensed to practice since 1969. Their practice focuses on business, product liability, litigation, environmental, and insurance. Admitted to practice in Missouri U.S. Court of Appeals, Eighth and Tenth Circuits, Armed Forces Circuits U.S. District Court (1969). Educated at Saint Louis University (J.D., 1969) and University of Notre Dame (B.A., 1966). Recognitions include AV Preeminent. Serves clients in St. Louis, MO and the surrounding metropolitan area.
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About Dennis E. O'Connell
- Dennis E. O'Connell is a lawyer practicing commercial, commercial litigation, insurance and 3 other areas of law
- Dennis received a B.A. degree from University of Notre Dame in 1966, and has been licensed for 57 years
- Dennis practices at Bryan Cave Leighton Paisner LLP in St. Louis, MO
Practice Areas Explained
Dennis E. O'Connell's Areas of Legal Practice
Each practice area below reflects the types of cases Dennis E. O'Connell handles, with a practical overview of what that area of law involves and how it may apply to your situation in St. Louis.
Business & Corporate Law in St. Louis
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Dennis E. O'Connell is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Missouri →
Product Liability in St. Louis
Dennis E. O'Connell is one of 65,610 product liability attorneys indexed nationally. Browse product liability attorneys in Missouri →
Civil Litigation in St. Louis
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Dennis E. O'Connell is one of 450,750 litigation attorneys indexed nationally. Browse litigation attorneys in Missouri →
Environmental Law in St. Louis
Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.
Dennis E. O'Connell is one of 55,977 environmental attorneys indexed nationally. Browse environmental attorneys in Missouri →
Insurance Law in St. Louis
Insurance attorneys for coverage disputes, bad faith claims, denied claims, and policy disputes.
Dennis E. O'Connell is one of 120,903 insurance attorneys indexed nationally. Browse insurance attorneys in Missouri →
Jurisdictional Context
Why Local Counsel Matters in St. Louis
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 venue, 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.
St. Louis Courts and Legal Process
Choosing a St. Louis-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Missouri attorneys? Browse all attorneys in St. Louis or all attorneys in Missouri.
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Professional Profile
Why Clients in St. Louis Choose Dennis E. O'Connell
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Dennis E. O'Connell's practice in the field of business, product liability, litigation, environmental, and insurance.
Decade-Tested Legal Experience
Dennis E. O'Connell brings 57+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Broad Practice Area Coverage
Covering business, product liability, and litigation, Dennis E. O'Connell can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in St. Louis
A St. Louis-based practice means Dennis E. O'Connell attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues Dennis E. O'Connell Handles in St. Louis
Below is a representative sample of the types of matters Dennis E. O'Connell has experience with under Missouri law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact Dennis E. O'Connell directly to discuss the specifics of your situation.
Search Reference
How People Find Dennis E. O'Connell Online
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Dennis E. O'Connell's Practice Areas & Specializations
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