David O'Brien
About David O'Brien
David O'Brien is a lawyer based in Austin, TX and has been recognized in The Best Lawyers in America® since 2023. David O'Brien is recognized in the following practice area:
-
Austin, Texas
- Patent Law
Current Firm: Haynes and Boone LLP
Education: The University of Texas, graduated 1995
Location: Austin, TX
Nearby Lawyers
Fred focuses his practice on civil litigation and appeals. His background includes litigation involving public law issues and real estate and commercial disputes. Fred has represented clients in a wide variety of litigation involving governmental matters, including condemnation and inverse condemnation proceedings, construction disputes, election contests, zoning controversies and contract actions. He has extensive experience with regard to eminent domain law, having represented both acquirin...
Jered Matthysse specializes in trademark law with a primary focus on litigation and policing, frequently handling cases in federal courts throughout the U.S. and before the U.S. Patent and Trademark Office Trademark Trial and Appeal Board. Jered has extensive experience in mediation and regularly assists clients with trademark policing strategies and programs. Jered has a background in appellate practice, having served as a law clerk for the U.S. Court of Appeals for the Seventh Circuit. Jere...
Marcy Hogan Greer is recognized for her work in federal and state trial and appellate courts throughout the country. Her practice consistently includes class action and mass tort cases, including federal and state multidistrict litigation. This experience contributed to her recognition in in Chambers USA: America’s Leading Lawyers for Business in Appellate Litigation, accreditation in Best Lawyers in America in Appellate, Bet-the-Company, and Commercial Litigation, and selection as the ...
Lisa Tsai is a founding partner of Reid Collins & Tsai. Lisa has represented clients in a wide variety of complex business litigation, including financial fraud cases, professional liability actions, fiduciary litigation, bank liability cases, insolvency cases, intellectual property litigation, securities and shareholder derivative lawsuits, class actions, and employment matters. Following a lengthy jury trial and bench trial, Lisa obtained a Top 50 Verdict in the United States and won a ...
Steve Skarnulis, a co-founder of Cain & Skarnulis PLLC, has litigated, arbitrated and resolved high-stakes matters in many industries, including fiduciaries and trusts, construction, insurance/reinsurance, banking and finance, hospitality, chemical, healthcare, technology, and energy. He has served as counsel for a range of business clients that run the gamut from small businesses to Fortune 500 companies. He’s no stranger to the pressures of business, as his first career was owning...
Frank B. Brown is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Real Estate Law and Tax Law. Frank B., who practices law in Austin, Texas, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Frank B. is held by other top lawyers in the same geographic and legal practice area.
Mr. Scott is a Partner of Osborne, Helman, Scott, Knisely & Stanton, LLP. He focuses his practice on fiduciary litigation, including trust, estate, partnership and guardianship disputes, representing parties on both sides of the docket. Mr. Scott also advises settlors, trustees, protectors, and asset holders in high value disputes related to international trusts and asset protection structures. Additionally, Mr. Scott co-counsels with family law attorneys in divorce cases where trust or e...
Christopher M. Clough joined Barron, Adler, Clough & Oddo, PLLC in 2008 and has been a Managing Partner since 2014. Previously, Mr. Clough spent four years with the Transportation Division of the Attorney General’s office, representing the State of Texas predominantly in eminent domain matters. He focuses on major road projects throughout the state and other major land use cases including such recent cases as AM Peeler Ranch, LLC v. San Miguel Electric Cooperative, Inc., and City of...
Andrew Weber, who previously served as Texas First Assistant Attorney General under now-Governor Greg Abbott, is currently a partner at Kelly Hart & Hallman LLP. At the firm, he heads the Austin office and Co-Chairs the Public Law practice group, which provides legal guidance to clients on matters at the intersection of law, policy, and politics before state agencies and the Legislature. Governor Abbott, when he was the Texas Attorney General, appointed Mr. Weber as his First Assistant in...
Jimmy L. Verner, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Jimmy L., who practices law in Austin, Texas, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jimmy L. is held by other top lawyers in the same geographic and legal practice area.
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.
The Family Law Loophole That Lets Sex Offenders Parent Kids
by Bryan Driscoll
Is the state's surrogacy framework putting children at risk?
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.
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
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.