Mr. Walder has concentrated his practice in the areas of environmental litigation and compliance, and commercial litigation. Before joining the firm, he served as Assistant Counsel to Governors James J. Florio and Thomas H. Kean on environmental issues. In that capacity, he evaluated all environmental legislation presented to the Governor for signature, attended committee hearings of the New Jersey Senate and General Assembly and worked with the Legislature in drafting legislation and providing advice thereon to the Governor. Before serving in the Governor's Office, he was a Deputy Attorney General handling environmental compliance and litigation matters, both as trial and appellate counsel. He also served as a law clerk to the Honorable Alan B. Handler of the New Jersey Supreme Court. He is a member of the New Jersey State Bar Association and has served as an adjunct Professor of Environmental Law at Seton Hall University Law School. He has also served on the New Jersey Supreme Court's Committee on Environmental Litigation, the New Jersey Department of Environmental Protection's Task Force on the County Environmental Health Act and the Randolph Township Environmental and Open Space Commissions.