Atty. William O. Sweeny III

Atty. William O. Sweeny III

William O. Sweeny III is a lawyer practicing civil litigation, products liability, insurance defense and 7 other areas of law.

Columbia Columbia 56 yrs experience 56 year
Call (839) 228-2238 Book Appointment

Profile Summary

About William O. Sweeny III at a glance

William O. Sweeny III is a Member based in Columbia, South Carolina. They have 56+ years of legal experience, licensed to practice since 1970. Their practice focuses on medical malpractice, personal injury, ip, construction, and product liability. Admitted to practice in South Carolina (1970) and U.S. District Court for the District of South Carolina and U.S. Court of Appeals, Fourth Circuit U.S (1972). Educated at University of South Carolina (J.D., 1970) and Colgate University (B.A., 1967). Recognitions include AV Preeminent. Active member of Richland County and American. Serands clients in Columbia, SC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William O. Sweeny III is a lawyer practicing civil litigation, products liability, insurance defense and 7 other areas of law
  • William received a B.A. degree from Colgate University in 1967, and has been licensed for 56 years
  • William practices in Columbia, SC

Practice Areas Explained

William O. Sweeny III's Areas of Practice

Each practice area below reflects the types of cases William O. Sweeny III handles, with a brief overview of what that area of law covers.

Medical Malpractice

Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.

William O. Sweeny III is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in South Carolina →

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

William O. Sweeny III is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in South Carolina →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

William O. Sweeny III is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in South Carolina →

Construction Law

William O. Sweeny III is one of 40,689 construction attorneys indexed nationally. Browse construction attorneys in South Carolina →

Product Liability

William O. Sweeny III is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in South Carolina →

Jurisdictional Context

Why local counsel matters in South Carolina

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

Looking for additional South Carolina attorneys? Browse all attorneys in Columbia or all attorneys in South Carolina.

Frequently Asked

Common questions about William O. Sweeny III

Where is William O. Sweeny III's law office located?
William O. Sweeny III's law practice is located in Columbia, South Carolina. You can contact the office directly through this profile page.
What practice areas does William O. Sweeny III handle?
William O. Sweeny III focuses on medical malpractice, personal injury, ip, construction, product liability. Each practice area listed reflects experience handling cases of that type in South Carolina.
How long has William O. Sweeny III practiced law?
William O. Sweeny III has 56+ years of legal experience and has been licensed since 1970.
Where did William O. Sweeny III go to law school?
William O. Sweeny III earned their education at (J.D., 1970); (B.A., 1967).
How can I contact William O. Sweeny III for a consultation?
You can contact William O. Sweeny III 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 William O. Sweeny III received?
William O. Sweeny III's notable recognition includes: AV Preeminent.

Education

J.D.
University of South Carolina
- 1970
B.A.
Colgate University
- 1967

Awards

AV Preeminent

Bar Admissions

South Carolina
Admitted: 1970
U.S. District Court for the District of South Carolina and U.S. Court of Appeals, Fourth Circuit U.S
Admitted: 1972

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