Ms. Lathrop is licensed as a professional land surveyor in New Jersey, Pennsylvania, Delaware, and Maryland, and as a professional planner in New Jersey. She holds a master’s degree in Environmental Policy and has been involved in surveying since 1974 in projects ranging from construction to boundary to environmental land use disputes. Ms. Lathrop is also a certified floodplain manager through the Association of State Flood Plain Managers (ASFPM) and a certified floodplain surveyor through the New Jersey Society of Professional Land Surveyors. A former adjunct instructor at Mercer County College in New Jersey, she has also taught as part of the team for the licensing exam review course at Drexel University in Pennsylvania. Ms. Lathrop has been teaching seminars for surveyors since 1986 and has been writing articles for surveyors since 1983. She is a contributing editor for The American Surveyor magazine, and she has four articles included in the American Bar Association’s text, Land Surveys: A Guide for Lawyers and Other Professionals. She and Stephen V. Estopinal, PLS, PE co–authored a book entitled Professional Surveyors and Real Property Descriptions: Composition, Construction, and Comprehension, published by John Wiley & Sons, Inc. in 2011. She is also on the faculty of GeoLearn, a web-based educational provider. Ms. Lathrop is a past president of the New Jersey Society of Professional Land Surveyors and of the National Society of Professional Surveyors, and she has served on the Board of Directors for the American Association for Geodetic Surveying.

Mr. Siegel is a member of Barley Snyder’s Real Estate and Environment & Energy practice group. He has spent more than two decades as a litigator at the Pennsylvania Department of Environmental Protection. In his time at the DEP, he litigated more than 250 appeals in state and federal courts and in front of the Pennsylvania Environmental Hearing Board in cases involving litigation of solid waste, clean water, environmental remediation, and sewage planning. His cases resulted in tens of millions of dollars of environmental remediation and civil penalties throughout Pennsylvania. In the private sector, Mr. Siegel has worked with businesses on both environmental and energy issues. He’s helped companies in real estate transactions navigate environmental issues, worked with municipalities on stormwater and sewage issues, and has assisted companies and other entities in addressing DEP and U.S. Environmental Protection Agency enforcement actions. He’s also worked with out-of-state gas pipeline owners and contractors to help them comply with Pennsylvania environmental requirements and defended them in DEP enforcement actions. Mr. Siegel is also a trained mediator. In addition to his time at the DEP, he has worked in federal government positions at the U.S. Centers for Disease Control and Prevention and the Agency for Toxic Substances and Disease Registry in Atlanta and with the Department of Energy’s Pacific Northwest Laboratory in Washington state. Mr. Siegel is a prolific speaker at professional gatherings throughout Pennsylvania on environmental topics including Pennsylvania’s Environmental Rights Amendment, Pennsylvania’s voluntary cleanup program, Chesapeake Bay and clean water issues, and municipal stormwater requirements. He also co-authored the chapter on Pennsylvania’s Land Recycling and Environmental Remediation Standards Act (Act 2) in Pennsylvania Environmental Law & Practice, 10th Edition. His professional environmental experience has led him to leadership positions with a multitude of nonprofit organizations both in central Pennsylvania and throughout the Mid-Atlantic. He’s also a former member of the Board of School Directors for the Lower Dauphin School District. Mr. Siegel earned his J.D. degree from Temple University Beasley School of Law.  

Mr. Whitaker combines expertise in administrative law with extensive litigation, trial and appellate experience. He is the only person to have been appointed chief counsel to both Pennsylvania resource agencies, the Department of Environmental Protection and the Department of Conservation and Natural Resources. During his nearly 28 years of Commonwealth service, Mr. Whitaker litigated and argued complex cases at trial and on appeal before administrative tribunals and state and federal courts, prosecuted selected criminal matters as a special deputy attorney general, and developed expertise in the defense of Section 1983 actions and in regulatory takings. He currently focuses on appellate and original jurisdiction practice in Pennsylvania and in selected federal courts, using his extensive knowledge of government and the courts to offer sound advice, creative solutions and effective strategies. Mr. Whitaker is a past president of the Pennsylvania Bar Institute and a past chair of PBA’s Administrative Law Section. He frequently serves as a planner and faculty member in CLE programs related to administrative law and appellate practice. Mr. Whitaker was law clerk to Joseph T. Doyle, president judge of the Commonwealth Court, as well as Commonwealth Court Judges Bonnie Leadbetter and Renee Cohn Jubelirer. He received his J.D. degree from the Dickinson School of Law and his B.S. degree from the Pennsylvania State University.