Ed Walsh

Ed Walsh

Chicago, IL


Ed focuses his practice on environmental law, leveraging his more than 25 years of experience to advise business enterprises in transactional, litigation and counseling matters.

Ed represents clients from a number of industries in mergers, sales, acquisitions and financings. Among other recent transactions, he provided environmental counsel to a company in securing a $1 billion syndicated borrowing base credit facility. He has counseled purchasers, sellers, investors and borrowers throughout the United States and abroad on environmental due diligence, contract negotiations, financing and post-closing issues, and indemnity claims.

Ed also represents clients on compliance and enforcement matters at the state and federal levels. He has provided counsel in multiple industry sectors on all of the major federal environmental statutes (CERCLA, RCRA, CAA, CWA, TSCA, FIFRA) and numerous state statutory schemes regarding air emissions, waste disposal and water and stormwater discharges. He has also represented employers with regard to workplace safety requirements under OSHA such as process safety management, asbestos abatement and citations.

He has successfully tried cases in state and federal courts and administrative tribunals across the country. His cases include a broad range of environmental issues, including impacted sites and alleged violations of law, toxic tort, nuisance and other claims. 



Northwestern Pritzker School of Law
J.D., 1983
Southern Illinois University
B.S., 1977

Bar Admissions


Professional Organizations

  • Illinois State Bar Association 


Ed has provided pro bono legal services to the National Veterans Legal Services Program and the Center for Disability and Elder Law.

Insights & Events



  • Leading Lawyers Network, Environmental Law, 2003-2022
  • Martindale-Hubbell Law Directory, AV Preeminent®
Leading Lawyers
Martindale-Hubbell Attorney - Peer rated for the highest excellence.