Biography
In Keeleigh’s practice, she seeks harmony in economic and environmental outcomes. Engagement with industry and power generation stakeholders is a cornerstone of Keeleigh’s practice, along with focusing on a collaborative approach to navigating compliance with federal environmental regulations, raising concerns of the regulated community in public comment periods, and litigating those where necessary to protect the interests of the domestic economy and electric grid.
Keeleigh represents clients in appeals of federal rulemaking relating to air quality in the United States Court of Appeals for the D.C. Circuit and applications for emergency stay in front of the Supreme Court of the United States. Most recently, Keeleigh represented two applicants for emergency stay of EPA’s Good Neighbor Plan, where the Supreme Court decided 5-4 to grant the requested stay (see Ohio v. Environmental Protection Agency, 603 U.S. ___ (2024)).
Keeleigh’s unique experience in blending technical and legal arguments supports her advocacy of clients in both amici and petitioner roles in regulatory appellate matters across various United States Courts of Appeals. She believes this ensures that she zealously advocates for clients and presents the clearest picture to the courts.
While much of experience is focused on Clean Air Act appellate issues, Keeleigh also works on issues relating to water, wastewater, hazardous materials, emerging contaminants, and environmental due diligence. In addition, Keeleigh’s practice includes advising clients in the construction industry through insurance policy coverage and contract analysis. Her work in this space helps contractors and project owners alike identify and mitigate risk throughout the lifecycle of construction projects, ensuring that environmental responsibilities are managed alongside operational and financial objectives.
Representative Experience
- Represented trade association clients in appellate litigation before the D.C. Circuit Court regarding legal and technical issues arising under federal regulations promulgated under the authority of the Clean Air Act
- Petitioned the United States Supreme Court for an emergency stays of federal rules where the D.C. Circuit failed to grant the requested relief. In Ohio v. EPA (and consolidated cases), the Supreme Court granted the emergency stay petition
- Represented amici in front of the Sixth Circuit of an exceptional events determination made by the U.S. Environmental Protection Agency due to impacts of wildfire smoke on air quality monitoring data
- Engaged with industry clients by presenting at monthly and quarterly meetings on pertinent environmental issues to develop client knowledge base and legal strategy
- Drafted comment letters on proposed environmental regulations on behalf of industrial and municipal clientele
Education
- J.D. West Virginia University College of Law
Memberships
- Vice Chair, Membership and Inclusion Committee for the Air Committee, American Bar Association
- Former Vice Chair, Written Content, Environment, Energy, and Resources Air Committee, American Bar Association
- Volunteer, Rotary Club of Charleston, WV
Speaking Engagements
- “Environmental Federal and State Regulator Issues: A Primer,” Indiana Energy Association’s Annual Meeting (October 5, 2023)
Publications
- “Texas Updates Oil and Gas Waste Rules for the First Time in 40 Years,” Texas Alliance of Energy Producers Energy Beat (January 9, 2026)
- “EPA Launches Resource Page to Support Development and Permitting for Data Center and AI Construction Projects,” Steptoe & Johnson PLLC Client Alert (December 18, 2025)
- “EPA Signals Case-By-Case Guidance and Pending Rule Change to Facilitate Early-Stage Construction Activities,” Steptoe & Johnson PLLC Client Alert (November 21, 2025)
- “The Supreme Court of the United States Has Indicated it Wants a Word on the Venue Provision of the Clean Air Act,” American Bar Association Newsletter (November 1, 2025)
- “EPA’s Decision to Rescind International Emission Guidance is Another Instance of this Administration’s Deregulation Efforts,” American Bar Association Newsletter (May 1, 2025)