Patrick R. "Pat" Cowlishaw

Sally Helppie is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Sally, who practices law in Dallas, Texas, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sally is held by other top lawyers in the same geographic and legal practice area.

No two divorces are the same, and no two divorces reach the same resolution. That means that how you achieve a resolution also differs from case to case. R. Scott Downing is a skilled trial lawyer who has tried numerous complex high-dollar property and custody cases. Recognizing the uniqueness of each case and that not every situation requires a courtroom, Scott is also skilled in the use of collaborative law to reach a resolution. In 2017, Scott was named to The National Law Journal’s ...

Dean Hinderliter focuses his practice on a wide range of tax matters, including all the tax aspects of corporate mergers and acquisitions, divestitures, private equity investments, public offerings, tax-free reorganizations, leveraged buyouts, the formation of joint ventures, and S corporation issues. His practice also concentrates on tax advisory work for partnerships, private equity funds, hedge funds, and limited liability companies in connection with ongoing operations, acquisitions, rest...

David Stone is a top attorney recognized by Best Lawyers in the practice area(s) of Product Liability Litigation - Defendants. David, 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 David is held by other top lawyers in the same geographic and legal practice area.

Jeremy W. Hawpe is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Jeremy W., who practices law in Dallas, Texas, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeremy W. is held by other top lawyers in the same geographic and legal practice area.

Mary L. O’Connor’s practice focuses on representing public companies and their officers and directors in commercial litigation and arbitration, securities litigation, internal investigations, and regulatory investigations and enforcement proceedings. Ms. O’Connor is a member of the Commercial Panel of the American Arbitration Association and is a FINRA arbitrator.

For more information, please visit www.gibsondunn.com/lawyer/cannon-michael-q/ .

Mr. Biermacher, a director of the Firm, is the most senior member of the Litigation Section in the Dallas office. His general broad trial and appellate practice and experience representing clients on both sides of the docket not only encompass personal and bodily injury defense provided on behalf of insureds and self-insured entities arising out of catastrophic injury, wrongful death, toxic and mass tort, sick building, false arrest, rape, defamation and professional negligence claims, but al...

Jessica B. Magee is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Securities. Jessica B., who practices law in Dallas, Texas, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jessica B. is held by other top lawyers in the same geographic and legal practice area.

Mark Chevallier is an attorney with Rochelle McCullough LLP in Dallas, Texas, where his practice focuses on bankruptcy and insolvency-related matters. He represents clients in bankruptcy proceedings in Texas and nationwide, advising parties across all stages of a case and in a wide range of roles. Mark’s work includes representing debtors, official committees, trustees, and other parties-in-interest in corporate bankruptcy matters. He has represented publicly traded companies with subst...