Daniel L. O'Neil
About Daniel L. O'Neil
Daniel L. O'Neil is a lawyer based in Houston, TX and has been recognized in Best Lawyers: Ones to Watch® in America since 2025. Daniel L. O'Neil is recognized in the following practice area:
- Houston, Texas
- Professional Malpractice Law
Current Firm: Thompson, Coe, Cousins & Irons LLP
Education: South Texas College of Law Houston, J.D., graduated 2010
Location: Houston, TX
It takes just a few minutes to optimize your profile for clients looking to engage and lawyers who are ready to refer.
Activate your profile and highlight why your peers recognized in Best Lawyers today.
Nearby Lawyers
Mark R. “Tiger” Pharr III has represented clients for more than 35 years in a wide range of matters, including construction defect, premises liability, insurance defense, personal injury, professional liability, and trucking. Tiger’s litigation practice includes jury trials, bench trials, mediations, and arbitrations, and he has handled appeals before state and federal courts. His experience also includes acting as a mediator and arbitrator in civil cases. Explore Tiger&rsqu...
John D. Surma is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management, Labor Law - Management and Litigation - Labor and Employment. John D., who practices law in Houston, Texas, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John D. is held by other top lawyers in the same geographic and legal practice area.
One of the nation’s leading tax controversy and planning attorneys, Richard Husseini brings to bear his 30 years of experience to successfully represent private and public companies and high-net-worth individuals in complex tax matters. He is described as “bright and thoughtful; a very good litigator” (Chambers USA 2022) and as “a national leader in tax disputes” whose “knowledge of the sector is very high” (Legal 500 US 2022). Richard is recognized b...
Natalie Armour offers experience in trial and appellate matters involving mass torts, pharmaceutical and medical device litigation, and other types of products liability claims, personal injury matters and business litigation. A key member of the Issues and Appeals Section of The Lanier Law Firm in Houston, Ms. Armour has briefed appellate matters before the Texas Supreme Court, Texas Courts of Appeals, Fifth Circuit, Eighth Circuit, and Court of Appeals for the Eastern District of Missouri. ...
Jonathan Baughman is a top attorney recognized by Best Lawyers in the practice area(s) of Oil and Gas Law. Jonathan, who practices law in Houston, Texas, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jonathan is held by other top lawyers in the same geographic and legal practice area.
Boris A. Hidalgo is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Boris A., who practices law in Houston, Texas, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Boris A. is held by other top lawyers in the same geographic and legal practice area.
Serving as Office Managing Partner of Akerman’s Houston office, Scott Marrs is a formidable trial lawyer litigating high profile matters in state and federal courts as well as arbitrations in the United States, South America, the Middle East, and Europe. Scott focuses on legal issues in virtually all aspects of the energy sector, including oil and gas exploration, production, transportation, storage, power, chemical, petrochemical, energy marketing, and well service. He also litigates i...
Foster C. Johnson is a trial lawyer who focuses on complex commercial litigation. He has represented Fortune 100 companies in a variety civil actions, including contract disputes, oil and gas matters, non-compete claims, intellectual property litigation, and consumer and employment class actions. His recent successes include a six-week trial that ended in a $41.6 million jury verdict against Lloyd’s of London. The case was one of the top 100 2017 verdicts in the nation according to the ...
Julian Seiguer is a top attorney recognized by Best Lawyers in the practice area(s) of Securities / Capital Markets Law. Julian, who practices law in Houston, Texas, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Julian is held by other top lawyers in the same geographic and legal practice area.
Teresa Valderrama is a partner in the firm's Houston office. She has more than 25 years of experience representing employers in all aspects of workplace law, including corporate investigations and compliance, wage & hour collective action defense, and defense of all manner of discrimination, workplace harassment and other work-related claims. This includes advice and counsel regarding trade secrets/business-asset protection, defense of the Sarbanes–Oxley Act (SOX) and other whistleb...
Explore and Learn
Recognizing Legal Leaders: The 2027 Best Lawyers Awards in Australia, Japan and Singapore
by Jamilla Tabbara
Market drivers, diversity trends and the elite practitioners shaping the legal landscape.
How Far Back Can the IRS Audit You?
by Bryan Driscoll
Clear answers on IRS statutes of limitations, recordkeeping and what to do if you are under review.
Musk v. Altman: The Lawyers Behind the Case
by Jamilla Tabbara
Meet the Trial Lawyers Shaping One of AI's Biggest Legal Disputes.
The Best Lawyers in France 2027: Peer-Reviewed Excellence
by Jamilla Tabbara
Seventeen editions of peer trust, a growing profession and a dynamic legal market.
Announcing the 2027 Best Lawyers Awards: Austria, Germany and Switzerland
by Jamilla Tabbara
Celebrating the legal professionals throughout Central Europe.
The Legal Teams Behind the Blake Lively–Justin Baldoni Settlement
by Grace Greer
A closer look at the legal teams and attorneys involved in the Blake Lively–Justin Baldoni litigation and its resolution.
How AI Is Changing the Way Clients Find Lawyers
by Jamilla Tabbara
Best Lawyers CEO Phil Greer explains how AI-driven search tools are reshaping legal marketing and why credibility markers matter.
When Is It Too Late to Stop Foreclosure?
by Bryan Driscoll
Understanding the foreclosure timeline, critical deadlines and the legal options that may still protect your home.
Can You Go to Jail at an Arraignment?
by Bryan Driscoll
Understanding What Happens at Your First Court Appearance.