Mark A. Girtz

Wade McClure, a Partner of the Firm in the Dallas office, primarily represents companies and individuals in complex commercial litigation, including business divorce cases, fiduciary duty litigation and fraud litigation. Wade also works on matters involving claims of minority shareholder oppression, investment fraud, and oil and gas disputes. Over the past thirty years, Wade has also represented manufacturers in products liability matters throughout Texas and the Southwest. Wade is a seasoned...

Michael P. Royal is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Michael P., who practices law in Dallas, Texas, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael P. is held by other top lawyers in the same geographic and legal practice area.

Larry D. Grayson is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. Larry D., who practices law in Dallas, Texas, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Larry D. is held by other top lawyers in the same geographic and legal practice area.

J. Karl Viehman is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. J. Karl, who practices law in Plano, Texas, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which J. Karl is held by other top lawyers in the same geographic and legal practice area.

John Thompson is a partner in the firm's Oil and Gas/Energy practice. He obtained his Bachelor of Science degree from Vanderbilt University in 1997 and graduated in 2000 from the University of Texas School of Law, where he was a member of the law journal, The Review of Litigation. Mr. Thompson represents clients in litigation involving a wide variety of oil and gas matters before state and federal courts at both the trial and appellate levels.

Jeff is a highly experienced litigator, mediator, and collaborative law attorney. With such a versatile skill set, he is exceptionally equipped to advise clients on the best approach to resolve their family law matter, and achieve an outcome that is ultimately successful. Jeff manages the full range of family law issues, with special expertise in high net worth business and complex property cases. Time as a civil business litigator early in Jeff’s career honed his technical skills and b...

Donald E. Godwin is considered one of the most respected and tenacious trial lawyers in Texas. For over 40 years Don has tried significant jury cases in courts throughout Texas and across the United States. He has the ability to translate complex matters of law and fact into easily understandable language for courts and juries. Don's practice covers a broad range of areas with an emphasis on complex litigation, including oil and gas, environmental, fiduciary duties, will contests, major famil...

Sarah Wirskye has been defending clients in white-collar criminal, False Claims Act and civil fraud disputes with the government for over 25 years. A strategic problem solver who is results focused and detail oriented, she works proactively with the government to help clients avoid an indictment or lawsuit. Sarah is an experienced courtroom litigator who has successfully tried white-collar criminal, civil, and other criminal cases in federal and state court. Sarah also has represented clients...

Jeffrey Owen Anderson has a true passion for the law that was instilled in him at an early age by his father, who was also a family lawyer. Jeff had the unique perspective of following his father around the courthouse at the age of five, working in his father’s practice in high school and serving process through college. This experience developed a keen instinct in him for complex property, custody and enforcement . Jeff joined Orsinger, Nelson, Downing and Anderson, LLP in January of 2...

Shawn C. Helms is co-head of the Firm’s Technology Transactions & Outsourcing Practice. Shawn has broad experience in the areas of information technology, digital health, AI, telecommunications and outsourcing. He focuses his practice on complex transactions involving technology and intellectual property, including business process outsourcing (BPO) and information technology outsourcing (ITO), licensing, cloud computing arrangements (infrastructure as a service (IaaS), software as ...