Philip A. "Phil" Eichorn

Anna has successfully represented both plaintiffs and defendants in state courts, federal courts, and arbitrations throughout the United States. She has accumulated significant first-chair trial experience in business disputes, representing both large and small companies, environmental and products liability cases, and in restructuring-related litigation, representing both debtors and creditors. Chambers describes her as “a go-to litigator in energy-sector disputes” with one sourc...

Mary Pace Livingstone represents defendants in a wide range of complex commercial circumstances in both state and federal courts. She joined the firm in August 2009. Prior to joining the firm, Ms. Livingstone clerked for the Honorable Chief Justice Adele Hedges of the Texas Court of Appeals, First District and was an associate with Bracewell & Giuliani, LLP. Obtained dismissal in state court for a director of an oil and gas company in case involving negligent misrepresentation, fraud, and...

John Zavitsanos is a highly regarded trial lawyer who loves trying cases and loves winning. He has achieved success for a multitude of clients – both defendants and plaintiffs, from big energy companies to lone whistleblowers battling the odds. He has tried almost 100 cases to verdict in litigation that runs the gamut: financial services, oil and gas, construction, complex commercial disputes, director and officer liability, non-compete and trade-secret disputes, real estate development...

Marc Grossberg's primary practice is representing clients in tax controversies at the examination, Internal Revenue Service appeal and trial and federal appeals levels, collection issues and pre-IRS examination compliance issues, including filing and foreign accounts and unique issues. Recent representations include bringing taxpayers "in from the cold," meaning assisting them in becoming compliant with the Internal Revenue Service before the Internal Revenue Service has discovered the non-co...

For over three decades, David has represented local, regional and national clients in a variety of commercial real estate matters including the acquisition, financing, development, management, leasing and sale of all classes of commercial properties. Special areas of concentration include complex financing (acquisition, construction, securitized and portfolio loans), the formation, management and operation of closely held limited liability companies, limited partnerships and other joint ventu...

Kevin P. Riley is a lawyer recognized by Best Lawyers in the practice area of Insurance Law. Kevin P. practices law in Houston, Texas Best Lawyers has recognized Kevin P. Riley since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Kevin P. Riley is held by other lawyers.

Jennifer Susan Sickler is a lawyer recognized by Best Lawyers in the practice area of Patent Law. Jennifer Susan practices law in Houston, Texas Best Lawyers has recognized Jennifer Susan Sickler since 2019. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Jennifer Susan Sickler is held by other lawyers.

Ryan aggressively seeks justice and accountability for people and institutions that have been harmed. He has 20 years’ experience successfully litigating complex disputes from the East Coast to the Gulf Coast. Ryan represents both plaintiffs and defendants in matters including breach of contract, partnership disputes, breach of fiduciary duty, antitrust, RICO, civil theft, theft of trade secrets, fraud, fraudulent transfer claims and securities, and antitrust class actions. His clients ...

For more information, please visit www.gibsondunn.com/lawyer/rayburn-doug/ .

John D. Pitts is a lawyer recognized by Best Lawyers in the practice area of Leveraged Buyouts and Private Equity Law. John D. practices law in Houston, Texas Best Lawyers has recognized John D. Pitts since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which John D. Pitts is held by other lawyers.