Gregory Sapire

Lauren J. Kalisek is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative / Regulatory Law. Lauren J., who practices law in Austin, Texas, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lauren J. is held by other top lawyers in the same geographic and legal practice area.

For more than 25 years, Shannon Vale has specialized in trademark and copyright law, intellectual property transactions and due diligence, and right of publicity law. Prior to joining Pirkey Barber, Shannon was a Trademark partner in the Austin office of Fulbright & Jaworski and a shareholder in Arnold, White & Durkee. Shannon also spent five years as the head of personal management firms that directed the careers of major label and major independent label recording artists based in t...

Jay A. Thompson has considerable experience in both regulatory and legislative issues involving the business of insurance. He regularly participates in regulatory proceedings involving contested case hearings, contested rate hearings, policy form approvals, rulemaking, licensing, mergers, acquisition and dissolution of insurance companies and other regulatory matters before the Texas Department of Insurance. As a registered lobbyist, Jay has represented both the property/casualty and life, ac...

Since 2004, Thomas has solved problems for Lloyd Gosselink clients through his more than 27 years of experience in representing clients before regulatory agencies, the courts, and the legislature. In addition to his focus on utility administrative law, his experience at the legislature, rate proceedings, rulemakings, transmission line licensing applications, and appellate litigation make Thomas a valuable resource for clients with electric, gas, and water utility issues.

Leah Stewart is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Leah, who practices law in Austin, Texas, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Leah is held by other top lawyers in the same geographic and legal practice area.

Derek practices administrative and regulatory law with a focus on environmental permitting and enforcement. With more than 30 years of regulatory and legislative experience, Derek assists clients with a wide range of matters, including Texas Commission on Environmental Quality (TCEQ) contested case hearings and regulatory compliance, water supply and water rights, air, water, waste, and wastewater discharge permitting.Derek previously held roles as General Counsel of the TCEQ, Counsel to form...

Mark Mueller is a nationally recognized trial attorney honored for his impactful work in birth injury litigation and product liability cases involving unsafe medical devices, chemicals, and pharmaceuticals. His dedication to justice extends beyond individual cases—Mueller has championed environmental and cultural rights, most notably representing the Brave Dog Society of the Blackfoot tribe to prevent oil and gas development in a protected wilderness area of Montana. He has also served ...

Jered Matthysse specializes in trademark law with a primary focus on litigation and policing, frequently handling cases in federal courts throughout the U.S. and before the U.S. Patent and Trademark Office Trademark Trial and Appeal Board. Jered has extensive experience in mediation and regularly assists clients with trademark policing strategies and programs. Jered has a background in appellate practice, having served as a law clerk for the U.S. Court of Appeals for the Seventh Circuit. Jere...

Erika L. Leonard is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Erika L., who practices law in Austin, Texas, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Erika L. is held by other top lawyers in the same geographic and legal practice area.

Mike Slack focuses on the most challenging and demanding areas of civil litigation, including aviation law and product liability cases against major corporations. A licensed pilot and former NASA aerospace engineer, Mike combines his technical knowledge and skills with his extensive litigation and trial experience for the benefit of his clients. Mike's legal experience includes more than 36 years and litigating hundreds of lawsuits arising from catastrophic injuries and deaths due to unsafe p...