Atty. Daniel Patrick Riordan
Daniel Patrick Riordan is a lawyer practicing commercial, corporate, securities and 2 other areas of law. Daniel received a B.A. degree from Washington University in 2000, and has been licensed for 21 years.
Commercial & More Attorney · Serving St. Louis, MO · 21+ Years Experience
Profile Summary
About Daniel Patrick Riordan at a Glance
Daniel Patrick Riordan is an Associate based in St. Louis, Missouri, practicing at Summers Compton Wells LLC. They have 21+ years of legal experience, licensed to practice since 2005. Their practice focuses on business, ip, securities, and health care. Admitted to practice in Missouri (2005). Educated at Washington University (J.D., 2005) and Washington University (B.A., 2000). Recognitions include Peer Reviewed. Serves clients in St. Louis, MO and the surrounding metropolitan area.
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About Daniel Patrick Riordan
- Daniel Patrick Riordan is a lawyer practicing commercial, corporate, securities and 2 other areas of law
- Daniel received a B.A. degree from Washington University in 2000, and has been licensed for 21 years
- Daniel practices at Summers Compton Wells LLC in St. Louis, MO
Practice Areas Explained
Daniel Patrick Riordan's Areas of Legal Practice
Each practice area below reflects the types of cases Daniel Patrick Riordan 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.
Daniel Patrick Riordan is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Missouri →
Intellectual Property in St. Louis
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Daniel Patrick Riordan is one of 105,285 ip attorneys indexed nationally. Browse ip attorneys in Missouri →
Securities Law in St. Louis
Daniel Patrick Riordan is one of 64,075 securities attorneys indexed nationally. Browse securities attorneys in Missouri →
Health Care Law in St. Louis
Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.
Daniel Patrick Riordan is one of 66,157 health care attorneys indexed nationally. Browse health care 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 Daniel Patrick Riordan
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 Daniel Patrick Riordan's practice in the field of business, ip, securities, and health care.
Decade-Tested Legal Experience
Daniel Patrick Riordan brings 21+ 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, ip, and securities, Daniel Patrick Riordan 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 Daniel Patrick Riordan 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 Daniel Patrick Riordan Handles in St. Louis
Below is a representative sample of the types of matters Daniel Patrick Riordan 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 Daniel Patrick Riordan directly to discuss the specifics of your situation.
Search Reference
How People Find Daniel Patrick Riordan Online
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Daniel Patrick Riordan's Practice Areas & Specializations
Education & Law School Background
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