David P. Whittlesey

P. Clark Aspy is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Insurance. P. Clark, 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 P. Clark is held by other top lawyers in the same geographic and legal practice area.

Tim J. Deithloff is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Public Finance Law. Tim J., who practices law in Austin, Texas, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tim J. is held by other top lawyers in the same geographic and legal practice area.

Andy Kever brings to his clients broad experience in regulatory, legislative, and corporate matters. For many years he has been recognized as an advocate and counselor for the electric and communication industries. For over 45 years, he has represented a variety of competitive and regulated electric and telecommunication interests, including large regulated electric utilities. Andy is routinely recognized by his peers for his expertise in administrative and regulatory law. He has been board c...

Kate Norman is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative / Regulatory Law, Energy Law and Energy Regulatory Law. Kate, who practices law in Austin, Texas, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kate is held by other top lawyers in the same geographic and legal practice area.

Mollie Duckworth is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Compliance Law, Corporate Law and Mergers and Acquisitions Law. Mollie, who practices law in Austin, Texas, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mollie is held by other top lawyers in the same geographic and legal practice area.

John Gilluly is a Chambers Band 1-ranked attorney who represents leading global and domestic companies, investors and other institutions across a range of industries, and focuses on capital markets transactions, SEC reporting and compliance, mergers and acquisitions, private equity, and corporate governance matters. Chambers recognizes John as a “highly regarded” lawyer for “his active funds practice and his deal focused attitude” and has noted that “peers are en...

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...

Demetrius McDaniel, the Chair of the firm's Texas Government Law & Policy Practice, counsels and provides advocacy for Fortune 500 and other large private and public sector clients on federal, state and local legal and public policy matters. His broad knowledge of federal and state government allows him to collaboratively develop strategies to solve complex problems that have a government origin or nexus. Demetrius consults with clients on their strategic objectives and provides advice on...

Mary-Wommack Tatum is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Mary-Wommack, who practices law in Austin, Texas, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mary-Wommack is held by other top lawyers in the same geographic and legal practice area.

Mrs. Stanton is a partner of Osborne, Helman, Scott, Knisely & Stanton, LLP. Mrs. Stanton specializes in probate and estate planning law and she is board certified in these practice areas. Her practice includes the representation of individuals with respect to their estate planning needs and the representation of fiduciaries and beneficiaries with regard to the administration of trusts and estates. She advises with regard to testamentary and lifetime gift and generation–skipping pla...