Shareholder/Director Archives

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J. Christopher Davis

Chris Davis is a shareholder and director in the firm’s Tulsa office. He represents clients as a member of the firm’s Alternative Dispute Resolution, Insurance, Intellectual Property, Litigation & Trial, and Product Liability Practice Groups. With more than 27 years…

Vickie L. Driver

Vickie Driver is a director in the firm’s Dallas office and is a member of the Bankruptcy & Creditor’s Rights, Corporate & Securities, Healthcare and Indian Law & Gaming Practice Groups. Her practice concentrates on bankruptcy and insolvency matters, distressed…

Christina “Crissie” W. Stephenson

Crissie Stephenson is a director in the firm’s Dallas office and serves as vice-chair of the Bankruptcy & Creditor’s Rights Practice Group. She assists companies and individuals in restructuring matters including Chapter 11 reorganizations, bankruptcy-related litigation and appeals as well…

Madalene A.B. Witterholt

With more than 35 years of experience, Madalene Witterholt assists clients in the full spectrum of employment law issues. Starting with employee hiring and I-9 compliance, employer policy development and day-to-day advice she provides employee training as well as the…

Tynia McQuigg

Tynia McQuigg is a director in the firm’s Oklahoma City office. Tynia focuses her practice on intellectual property law, including IP litigation, trademark clearance and registration, patent prosecution, copyright issues, IT licensing and compliance and unfair competition. She also assists…

L. Mark Walker

L. Mark Walker, a director in Crowe & Dunlevy’s Oklahoma City office, focuses his practice in the areas of energy, natural resources and environmental law. His practice includes litigation in both federal and state courts, as well as practicing before…

Evan G.E. Vincent

Evan Vincent’s practice involves representing clients in a wide variety of complex and high stakes civil litigation matters and he regularly serves as lead counsel from pre-filing through the completion of the appellate process in disputes involving numerous different areas…

John M. Thompson

John Thompson serves as a shareholder and director for Crowe & Dunlevy in the firm’s Oklahoma City office, and chairs the firm’s Litigation & Trial Practice Group. John has concentrated his practice in the litigation of complex business matters and…

David M. Sullivan

David Sullivan is a registered patent attorney and chair of the firm’s Intellectual Property and Technology group. David’s practice is primarily directed at obtaining and enforcing patent and trademark rights for his clients, who range from Fortune 500 companies to…

Roger A. Stong, President/CEO

Roger A. Stong is an experienced business lawyer, whose practice focuses on corporate, securities and bankruptcy reorganization law. Roger has represented clients in joint ventures, mergers and acquisitions, public and private offerings, securities law compliance and other general corporate and…