Practice Areas


Our attorneys have comprehensive experience in all aspects of environmental law.




We routinely advise on safety compliance issues, permitting, audit protocols and enforcement actions


We have decades of experience defending and trying toxic tort cases.



Our team has litigated a wide variety of environmental, corporate, product liability and commercial matters.

MD Recognized by Chambers USA

Chambers USA: America’s Leading Lawyers for Business (2018 Edition) recognized McMahon DeGulis LLP as a Band One firm in Natural Resources and Environmental law in Ohio.

Chambers USA identifies MD as a “Highly regarded boutique with expertise covering the full range of environmental law. Possesses particular strength in wastewater and brownfield matters, as well as integrated planning work related to the CWA.”

Partners Michael McMahon, Gregory DeGulis, David Nash, Louis McMahon, and Andrea Salimbene were also recognized for their individual representation of clients. In particular, Gregory DeGulis “is praised by one commentator for being an ‘excellent lawyer and a good environmental litigator,’” while Louis McMahon is “very intelligent, diligent and a good communicator.” The Guide also notes that “Andrea Salimbene is a highly rated younger partner with a burgeoning reputation in this space.”

View the Editorial

Andrea Salimbene to Present at CSEAO Annual Summer Conference

Andrea Salimbene will present The Final Year: Ohio EPA’s 2018 Initiatives under the Kasich Administration at the County Sanitary Engineers Association of Ohio annual summer conference being held June 4-5. Andrea will speak at 2:15 pm on June 4.  This year’s conference will be held at the Blackwell Inn and Pfahl Conference Center on the Ohio State Campus in Columbus.

View the Agenda

OSBA Environmental Law “Call for Papers” Winner Announced

On Thursday April 12, the Ohio State Bar Association announced Taylor Waters as the winner of its 2018 Environmental Law Award. Taylor’s winning paper focused on utilizing the Endangered Species Act as an existing legislative framework that could be modified to protect newly, scientifically resurrected species. Taylor is a third year law student at Michigan State University College of Law.

The OSBA Environmental Law Award call for papers sought manuscripts that advance the application and practice of environmental, energy or resources law in Ohio. As the winner of this contest, Taylor received the OSBA Environmental Law Award and a prize of $1,000, donated by McMahon DeGulis LLP.

Learn More

MD Law Clerk Recognized at Moot Court Competition

Lauryn G. Kitchen received the award for Best Overall Oralist at the 2018 August A. Rendigs National Products Liability Moot Court Competition.  The competition, held March 23-24, 2018, is the only national competition devoted to products liability law and honors Mr. August A. Rendigs, Jr. (1895-1988), one of Cincinnati’s most respected trial lawyers. This year, twenty teams from ABA-accredited law schools competed.

Lauryn is currently a second year law student at the University of Akron, where she is a member of the Akron Law Review and the Akron Moot Court Honor Society. A graduate of Cedarville University, Lauryn joined the MD team in 2013.  As a Law Clerk, Lauryn supports the attorneys at MD in a wide variety of environmental matters, including permit compliance and enforcement, cost recovery, and environmental litigation.

Learn More About the Competition