Ms. Marvin focuses her practice on Environment & Energy and Indian Law matters.  Ms. Marvin gained significant experience and expertise in these practice areas prior to joining Lippes Mathias while working for the Federal Government as a staff attorney for the National Indian Gaming Commission and as an attorney within the United States Department of Justice (DOJ), Environment and Natural Resources Division.
Indian Law
Ms. Marvin has assisted tribes on facility licensing, approval of gaming ordinances, and management contracts and vendor agreements and has provided advice concerning sole proprietary interest concerns with sports betting agreements, tolling provisions in management contracts, and states’ jurisdiction to enforce COVID-19-related public health regulations in Indian country. She also advised the National Indian Gaming Commission concerning employee procedures in accord with Criminal Justice Information System protocols. While at the DOJ, she represented the United States in cases involving tribal recognition, land-into-trust decisions, water rights claims, and claims alleging breach of trust and mismanagement of tribal funds and resources. Ms. Marvin has experience with many of the major laws affecting tribes and tribal lands, including the Indian Gaming Regulatory Act, the Indian Reorganization Act, the Indian Long Term Leasing Act, the Religious Freedom Restoration Act, and the Native American Graves Protection and Repatriation Act (NAGPRA).
Environmental Law
Ms. Marvin gained extensive environmental experience from her more than 11 years as a trial attorney within the DOJ’s Environment and Natural Resources Division (ENRD), where she represented the United States in complex civil litigation arising under a broad range of environmental statutes, including the National Environmental Policy Act, the Clean Water Act, the Rivers and Harbors Appropriation Act, the Wild and Scenic Rivers Act and Section 106 of the National Historic Preservation Act.  In defending federal agencies against environmental challenges, Ms. Marvin developed a broad understanding of a wide range of environmental issues and resource areas, including wetlands, fish and wildlife, water supply, groundwater contamination, wastewater pipeline permitting, through litigating major cases involving a variety of subject matter areas, including special use permits and upgrades for an electric transmission line, the environmental impacts of a surface mining project and the proposed extension of a railroad corridor, Agencies Ms. Marvin has represented include the U.S. Army Corps of Engineers, the United States Navy, FEMA, the U.S. Fish and Wildlife Service, the National Marine Fisheries Service, the National Park Service, and the Department of Transportation.  Previously, as an attorney-advisor in the Department’s Justice Management Division, Ms. Marvin advised the DOJ management on personnel matters, security, records management, and procurement.
Ms. Marvin also served on the Environment and Natural Resource Division’s Environmental Justice Committee and the Federal Interagency Workgroup on Environmental Justice, where she helped develop a guide that focused on actions communities could take to ensure that federal agency decision-making adequately considers environmental impacts on minority populations, low-income populations, and/or Indian tribes and indigenous communities.
Prior to joining the United States Federal Government, Barbara practiced insurance law at law firms in Washington, DC, where her experience included insurance coverage litigation, and advising and defending clients on coverage for indemnification and defense costs for environmental property damage, toxic tort exposures, construction defect, advertising liability, and professional malpractice claims under commercial general liability, professional liability, business auto, and homeowners’ policies.

  • District of Columbia
  • Virginia
  • U.S. District Court, Eastern District of Virginia
  • U.S. District Court, District of Maryland
  • U.S. Court of Federal Claims
  • U.S. Court of Appeals for the Fourth Circuit
  • U.S. District Court, Western District of Virginia

  • Washington College of Law, American University, J.D., magna cum laude
  • DePaul University, M.M.
  • North Park University, B.A.

Professional Associations 
  • City of Alexandria, Va. Park and Recreation Commission, Commissioner; Liaison to the city’s Open Space Workgroup 
  • D.C. Bar Association, Regulations/Rules/Board Procedures Committee, Member 
  • Native American Bar Association D.C., Member 
    •  DC Bar Association, Environment, Energy and Natural Resources Community Steering Committee, and Indian Law subcommittee, Member
Honors and Awards
  • DOJ, Environment and Natural Resources Division, Special Commendation for Outstanding Service, 2013
  • National Indian Gaming Commission, Professional Service Award, 2021

Community Involvement
  • Alliance for New Music-Theatre, Board of Directors

Representative Matters 
  • Jamul Action Committee v. Chaudhuri, et al., 200 F.Supp.3d 1042 (E.D. Cal. 2016) 
  • Cahto Tribe of the Laytonville Rancheria v. Dutschke, 2011 WL 4404149 (E.D. Cal. 2011) ] 
  • Tuttle v. Jewell, 168 F.Supp.3d 299 (D.D.C. 2016) 
  • Louisiana Crawfish Producers Ass'n West; et al. v. Mallard Basin, Inc.; et al. 2019 WL 171693 (W.D. La. 2019) 
  • Audubon Soc’y of Greater Denver v. U.S. Army Corps of Engineers, 2017 WL 6334229 D. Colo. 2017) 
  • City Park for Everyone Coalition, et al. v. Federal Emergency Management Agency, et al. 2016 WL 7116022 (E.D. La. 2015) 
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