Adam H. Sencenbaugh

Adam serves as a trusted advisor and zealous advocate for his clients. He has tried more than 20 cases to jury verdict. Adam’s environmental practice focuses on representing clients in CERCLA, TSWDA, and related environmental enforcement matters in state and federal courts throughout the country.

Adam is board certified in labor and employment law by the Texas Board of Legal Specialization. He advises clients navigating a wide range of employment law issues, including compliance with Title VII, § 1981, ADA, ADEA, FMLA, and FLSA. Adam’s employment litigation practice is focused on defending clients against myriad employment-related claims, including theft of trade secrets, restrictive covenants, retaliation, discrimination, harassment, and wrongful discharge.

Adam also served as co-counsel for a coalition of 88 school districts in a lawsuit challenging the constitutionality of the state’s current school finance system. This lawsuit, which was tried over the course of 16 weeks, culminated in a 382-page decision holding Texas’s school finance system unconstitutional on all of the grounds asserted by Haynes Boone’s clients.

While working at Haynes Boone, Adam served as a volunteer prosecutor for the city of Houston, where he prosecuted thousands of misdemeanor cases for the state of Texas. Prior to joining the firm, Adam completed a federal district court clerkship and served as an intern in the United States Attorney’s Office for the Western District of Texas in Austin. 

Adam was selected for inclusion in Texas Super Lawyers Rising Stars, Thomson Reuters, for Employment Defense Litigation and Environmental Defense Litigation, 2015; and Business Litigation, 2014-2021 and 2024-2025; recognized as a Labor and Employment Star by Benchmark Litigation, Euromoney Institutional Investor PLC, 2021, Best Lawyers in America, Woodward/White, Inc., for Litigation - Environmental, 2024 - 2026; and in Austin’s Top Attorneys, Austin Monthly, Open Sky Media, 2021-2023.