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.

Greg DeGulis Delivers 6th Circuit Oral Argument

On January 31, 2018, Greg DeGulis delivered an oral argument in the U.S. Court of Appeals for the Sixth Circuit in Cincinnati. Greg, along with co-counsel Erin McDevitt-Frantz, represents the City of Green in a challenge to Ohio EPA’s issuance of a 401 Water Quality Certification for the Nexus Pipeline.

Learn More About Greg's Work

Environmental Law Network recognized by Chambers Global

The Environmental Law Network (ELN) received a Band 1 ranking in Environment in the Chambers 2018 Global Guide. The Environmental Law Network is the only environmental law network to be globally recognized by Chambers and Partners.

ELN is the first environmental law firm network that makes local environmental legal representation available nationwide. ELN also has foreign affiliates in Argentina, Brazil, Canada, Columbia, France, Italy, Mexico, Spain and the United Kingdom. Greg DeGulis, Partner at McMahon DeGulis, currently serves as Chair. ELN provides significant benefit to MD clients, especially when the situation calls for an attorney in another jurisdiction with strong local connections.

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Erin McDevitt-Frantz named the Chair of the Avon Lake Environmental Affairs Advisory Board

At the January 2018 meeting of the Avon Lake Environmental Affairs Advisory Board (EAAB), Erin McDevitt-Frantz, Associate at MD, was named the Board Chair. The Avon Lake Environmental Affairs Advisory Board (EAAB) is charged with identifying environmental issues within the city, investigating the causes and solutions for those issues, and advising the public and City Council on what measures should be taken. The EAAB strives to educate and increase community awareness on issues relating to our natural environment, wildlife, and public health. The Board also seeks to foster a positive, responsible, cooperative, and continuous relationship between industries and residents of the City of Avon Lake. Learn more about the EEAB on the Avon Lake website. The EEAB is also on Facebook.

Meet Erin

MD Attorneys to Present at One Water Government & Regulatory Affairs Workshop

On March 8, 2018, Dave Nash and Andrea Salimbene will present Taking Control of Regulatory Compliance Messaging in the Instant Communication Age at the One Water Government Affairs Workshop. One Water Ohio is a collaboration between the Ohio Water Environment Association and the Ohio Section of the American Water Works Association to hold training events for Ohio’s Water Professionals. The Government & Regulatory Affairs Workshop will be held at Nationwide Hotel & Conference Center in Lewis Center, Ohio. Registration begins at 7:30 am on March 8th.

Register Here

MD Attorneys Selected to 2018 Ohio Super Lawyers and Rising Stars Lists

Gregory DeGulis and Louis McMahon were selected to the 2018 Ohio Super Lawyers list. Each year, no more than five percent of the lawyers in the state are selected by the research team at Super Lawyers to receive this honor.

Erin McDevitt-Frantz and Andrea Salimbene were selected to the 2018 Ohio Rising Stars list. Each year, no more than 2.5 percent of the lawyers in the state are selected by the research team at Super Lawyers to receive this honor.

The Super Lawyers lists are published nationwide in Super Lawyers Magazines and in leading city and regional magazines and newspapers across the country. Super Lawyers Magazines also feature editorial profiles of attorneys who embody excellence in the practice of law. For more information about Super Lawyers, visit

Learn More About Our Attorney Recognitions