William T. O'Connell III
About William T. O'Connell III
William T. O'Connell III is a lawyer based in Denver, CO and has been recognized in The Best Lawyers in America® since 2021. William T. O'Connell III is recognized in the following practice areas:
-
Denver, Colorado
- Civil Rights Law
- Litigation - Labor and Employment
Current Firm: Thompson, Coe, Cousins & Irons LLP
Education: Suffolk University, J.D., graduated 1997 and Norwich University, B.S., graduated 1992
Location: Denver, CO
Nearby Lawyers
Curt Sullan was born in Fort Lauderdale, Florida, in 1962, and grew up near Chicago. He graduated from Glenbrook North High School in 1980 and from the University of Maryland in 1984. He received a bachelor’s degree in political science, with a double minor in English and Philosophy. Mr. Sullan graduated from the University of Denver College of Law in 1988 with a Juris Doctor. While at the University of Denver, Mr. Sullan served on two law reviews and was a member of the Moot Court. Mr....
Scott Pechaitis is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Scott, who practices law in Denver, Colorado, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Scott is held by other top lawyers in the same geographic and legal practice area.
Sean McGuinness is highly experienced in gaming regulatory matters, and represents clients throughout the USA. "He's very responsive, quick on his feet and practical in his approach, and he provides very good solutions." "He gets the job done in a timely fashion and he has excellent relationships with the regulators." "Sean's superb reputation at the (Nevada) Gaming Control Board proves invaluable in getting things done smoothly." - Chambers USA
Daniel R. Coombe is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. Daniel R., who practices law in Denver, Colorado, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Daniel R. is held by other top lawyers in the same geographic and legal practice area.
Betsy P. Bengtson is a top attorney recognized by Best Lawyers in the practice area(s) of Trademark Law. Betsy P., who practices law in Denver, Colorado, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Betsy P. is held by other top lawyers in the same geographic and legal practice area.
Marlana Caruso is a partner in the firm’s Family Law Practice. In addition to being one of the firm’s most esteemed family law attorneys, Marlana is an accomplished litigator and a leader in the legal community. Marlana draws on a wealth of knowledge she’s cultivated throughout her career to help families overcome the complex and painful domestic litigation process impacting their lives. The Colorado Supreme Court has recognized Marlana for her pro bono activities outside th...
Education Mr. Coan received his undergraduate degree in Business Administration with honors from the University of Northern Colorado and his Juris Doctorate degree from the University of Denver. Admissions & Associations Mr. Coan is admitted to practice before all courts in the States of Arizona, Colorado and North Dakota. Mr. Coan currently serves as the Secretary/Treasurer of the Colorado Bar Association’s Business Law Section Council and is the Co-Chair of the Financial Instituti...
Dan's passion is representing injured people and their families in personal injury cases. He has extensive experience pursuing a wide range of personal injury cases including sex assault cases, complex medical malpractice matters and wrongful death cases. Dan has obtained millions of dollars in settlements and judgments for injured people and their families. Dan has been selected by his peers for inclusion in Best Lawyers in America and, for 2021, Best Lawyers in America named Dan “Lawy...
Michael Burg J.D. is one of America’s leading trial lawyers, a best-selling author, legal expert, and founding shareholder of Burg Simpson Eldredge Hersh & Jardine. A legal champion for victims of corporate and individual malfeasance, negligence, overreach, and abuse, Burg began his career fighting for the underdog and has gone on to successfully litigate some of the country’s most high-profile cases of the past four decades. Under Burg’s leadership, Burg Simpson Eldredg...
Explore and Learn
2026 Best Lawyers Awards: Recognizing Legal Talent Across the United States
by Jamilla Tabbara
The 2026 editions highlight the top 5% of U.S. attorneys, showcase emerging practice areas and reveal trends shaping the nation’s legal profession.
Gun Rights for Convicted Felons? The DOJ Says It's Time.
by Bryan Driscoll
It's more than an administrative reopening of a long-dormant issue; it's a test of how the law reconciles the right to bear arms with protecting the public.
2026 Best Lawyers Awards in Canada: Marking 20 Years of Excellence
by Jamilla Tabbara
Honoring Canada’s most respected lawyers and spotlighting the next generation shaping the future of law.
How to Sue for Defamation: Costs, Process and What to Expect
by Bryan Driscoll
Learn the legal standards, costs and steps involved when you sue for defamation, including the difference between libel and slander.
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
How to Choose a Good Lawyer: Tips, Traits and Questions to Ask
by Laurie Villanueva
A Practical Guide for Your First-Time Hiring a Lawyer
Reddit’s Lawsuit Could Change How Much AI Knows About You
by Justin Smulison
Big AI is battling for its future—your data’s at stake.
Unenforceable HOA Rules: What Homeowners Can Do About Illegal HOA Actions
by Bryan Driscoll
Not every HOA rule is legal. Learn how to recognize and fight unenforceable HOA rules that overstep the law.
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.