Dennis A. Clifford

Hugh M. Ray III is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law and Oil and Gas Law. Hugh M., 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 Hugh M. is held by other top lawyers in the same geographic and legal practice area.

Brian E. Simmons focuses on all facets of intellectual property law, including patent and trade secret litigation; patent counseling; due diligence investigations for investments, acquisitions, and divestitures; technology transfers, joint developments, and other research agreements; licenses; transactions involving IP; and risk consulting. Mr. Simmons has represented clients in a variety of matters in the chemical arts after serving as a senior research chemist prior to practicing law. His e...

Jason S. McManis is a partner at AZA and the head of AZA’s intellectual property group. He is a skilled trial lawyer with extensive experience in front of the jury in courtrooms across the United States. IAM Patent 1000 ranks Mr. McManis as a leading patent litigator and highlights that he “is often brought in to take over cases from previous counsel” while commending his ability to “adapt to changing circumstances with alacrity.” Mr. McManis represents both plai...

David E. Warden is an internationally recognized expert in business litigation and arbitration, including patents and other intellectual property. He is a lawyer, arbitrator, engineer, adjunct professor, published author, and businessman. Mr. Warden has tried many healthcare, energy, securities, and intellectual property business lawsuits for individual clients and entities, as well as mass actions and class actions, and is licensed as a patent attorney before the U.S. Patent & Trademark ...

Adam Milasincic is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Adam, 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 Adam is held by other top lawyers in the same geographic and legal practice area.

Hunter Barrow is a seasoned commercial trial lawyer who leads the firm’s Business Litigation Practice Group. He has a broad litigation practice in trial and appellate courts. Hunter has experience handling a wide variety of matters, involving securities, financial institutions, energy, real estate, intellectual property, antitrust, insurance, product liability, and general commercial litigation. His clients span numerous industries, including energy, banking and finance, real estate dev...

Dwana Waltman joined The Lanier Law Firm in February of 2009 as an intake attorney for the toxic tort division. Mrs. Waltman was born in Lufkin, Texas. She graduated from Baylor University, magna cum laude, in 1993 with a degree in Sociology and attended law school at Texas Tech University. Mrs. Waltman was in private practice in Lubbock before taking a position as an Executive Director of a non-profit legal organization. Under her direction, the agency tripled in size and vastly expanded ser...

Laura Manion is a top attorney recognized by Best Lawyers in the practice area(s) of Eminent Domain and Condemnation Law. Laura, 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 Laura is held by other top lawyers in the same geographic and legal practice area.

Anthony T. Golz is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice. Anthony T., 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 Anthony T. is held by other top lawyers in the same geographic and legal practice area.

Dan Cogdell is a Fellow in the American College of Trial Lawyers . His Chambers rating is “Band 1” in White Collar Crime and Government Investigations. Cogdell has been trial counsel in more than 300 jury trials in over sixteen different States. His experience includes verdicts of “Not Guilty” in the Branch Davidian matter, the only acquittal in any Enron related matter, and the successful representation of Texas Attorney General Ken Paxton-both as a member of Paxton&r...