Michael J. O'Callaghan

Columbus Managing Partner

Mike specializes in environmental law, workplace health and safety matters, and real property litigation. He has extensive experience in representing clients in all aspects of environmental law, including compliance and defense of enforcement proceedings. He also regularly represents clients in a variety of commercial transactions involving environmental issues, including due diligence in mergers and acquisitions and brownfield redevelopment projects. Mike advises employers on workplace health and safety compliance and represents employers in OSHA proceedings. He also has significant experience involving real property litigation, including environmental and commercial landlord/tenant disputes.   

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