Ms. Walls has represented a wide variety of clients in the manufacturing, chemical, food and beverage, and aerospace industries, along with clients in the real estate, oil and gas, agricultural, electric transmission, and transportation sectors.

• CERCLA and other environmental litigation.
• Administrative hearings before state, federal, and local environmental agencies.
• Representation of clients in environmental enforcement, permitting, remediation, and rule-making proceedings.
• Sales, purchases, and leasing of contaminated properties.
• Siting, expansion, and relocation of facilities.
• Brownfield issues, including successful completion of the Texas Innocent Owner/Operator Program, Voluntary Cleanup Program, and Municipal Settings Designations.
• Water rights controversies, storm water, wastewater, and groundwater.
• Endangered Species Act Issues
• Internal investigations of alleged ethics violations, inflated earnings, kickbacks, environmental crimes, and other malfeasance.