Dennis G. Walsh was graduated magna cum laude from the State University of New York-College of Technology, receiving a B.P.S. degree in 1982. He received his J.D. degree from the John Marshall Law School in 1986. While attending John Marshall, Mr. Walsh served as a member of the Moot Court Executive Board and participated on the Irving P. Kaufman Securities Law National Competition Team. Mr. Walsh was also the executive editor of The Marshall Opinion, the school's student newspaper. He has been admitted to the Bars of the State of Illinois, the United States District Court for the Northern District of Illinois, the United States Court of Appeals for the Seventh Circuit, and the Supreme Court of the United States. He is a member of the Chicago Bar Association and the Illinois State Bar Association.
Mr. Walsh oversees the firm's environmental practice. He has successfully led negotiations and litigation for a number of municipalities in high profile environmental cleanups including Oak Park's Barrie Park, one of the largest remediation projects of a manufactured gas plant in the United States, and the Village of Lisle, in the cleanup of trichloroethylene (TCE) and other contaminants associated with the Lockformer manufacturing site. He is actively involved in large and complex Brownfields redevelopment projects and the local siting requirements and host agreements for pollution control facilities.
Mr. Walsh's publications include Corporate Successor Liability Under CERCLA, 79 Ill. B.J. 425 and a series of articles published in the Illinois Municipal Review on the requirements of the Illinois Underground Storage Tank Program. He has published articles on Municipal Liability Under Superfund and Reimbursement to Local Governments for Emergency Responses to Hazardous Substance Releases. Mr. Walsh has also written an article for the firm's Education Law Report entitled Protecting Your District from Environmental Liability Associated with Land Acquisitions and is co-author on an article written for the North Suburban Library System entitled Library Law: Is the Site for Your Library Really Clean? He is the author of The Open Meetings Act written for the Township Officials of Illinois Town Clerk's Handbook. He is also one of the authors of the manual entitled "The Sunshine Laws: Open Meetings & Freedom of Information Acts", the manual on "Conflict of Interest and Liability of Illinois Elected Officials, and the manual on Police and Fire Disciplinary Matters, published by the Illinois Municipal League and he has spoken to various groups on a wide range of legal topics.
Mr. Walsh's practice at Klein, Thorpe & Jenkins, Ltd. includes a variety of general and municipal law matters, including litigation, civil rights and environmental issues. Mr. Walsh has been Village Prosecutor for the Village of Oak Lawn and Township Attorney for Orland Township. He currently acts as Assistant Village Attorney for the Village of Orland Park, General Counsel for the Orland Fire Protection District and the Woodridge Park District and represents a number of library districts.