With over a decade of litigation experience in both private practice and the federal government, Tanya is a seasoned litigator with a focus on issues arising under NEPA, FLPMA, and other federal resource management statutes.

Tanya’s environmental and natural resource practice includes representing public and private clients under a multitude of federal and state laws, with emphasis on environmental litigation, environmental permitting, natural resource and land management and wildlife management. Prior to joining Marten Law, Tanya served as a Trial Attorney for the U.S. Department of Justice’s Natural Resources Section of the Environment and Natural Resources Division. While at DOJ, Tanya handled a diverse docket of natural resources matters, including representing the Bureau of Land Management and Forest Service in Greater Sage Grouse litigation. In 2018, Tanya earned the Department of Justice Award for Outstanding Service.

Tanya’s government service also includes serving as an Assistant United States Attorney for the U.S. Attorney’s Office in Washington, D.C. There she served as first-chair in 35 bench trials of violent crimes and narcotics cases.

  • Represents New Mexico local governments for recovery of costs to remediate municipal water supplies contaminated by hazardous substances used by private company
    • Successfully settled and negotiated penalties in EPA enforcement action for industrial stormwater permit compliance under the Clean Water Act.
    • Successfully co-defended preliminary injunction against the Bureau of Land Management and Forest Service decisions implementing greater protections for the Nevada Greater Sage-Grouse species and their habitat.
    • Handled NEPA challenges in two lawsuits relating to the United States Fish and Wildlife Service’s rule governing an experimental population of Mexican wolves in Arizona and New Mexico.
    • Led Fifth Amendment takings litigation involving a $56 million-dollar partial settlement of over 30 just compensation claims involving the East Lake Sammamish Trail in Sammamish, Washington.
    • Obtained partially favorable ruling on summary judgment for Bureau of Land Management and Forest Service decisions creating a master development plan and well-pads for the exploration and development of oil and gas in the Colorado River Basin.
    • Successfully defended NEPA challenges to the National Marine Fisheries Service’s final environmental impact statement assessing the effect of proposed fishing regulations on a population of Steller sea lions in the Alaska region.
    • Negotiated settlement for the development of a comprehensive conservation plan for the National Bison Range complex in western Montana.
    • Successfully defended Bureau of Land Management decisions to remove populations of wild horses in Northwest Colorado against TRO and preliminary injunctions. Prevailed in summary judgment briefing on the same.
    • Defended two lawsuits bringing NEPA and FLMPA challenges regarding the Bureau of Land Management’s issuance of leases for the development of oil and gas in Southwest Colorado.

    • J.D., George Washington University, Research Fellow (Jacob Burns Law Library), Public Justice Clinic (provision of law services for the indigent)
    • B.A., Smith College, Government & Sociology, Barbara Jordan Law School Scholarship Recipient 
    Admissions & Memberships

    • State Bar of Washington
    • Commonwealth of Virginia Bar
    • District of Columbia Bar 
    Recognition & Activities

    • The National Black Lawyers Top 100 (2022)
    • The National Black Lawyers 40 under 40 in Washington State (2021)
    • Co-Vice Chair of Publications, Public Land and Resources Committee of the Section of Environment, Energy and Resources, American Bar Association
    • ELI WELL West Coast Steering Committee 
    Publications & Presentations

    • Panel Speaker, "Amending NEPA to Enhance Environmental Justice and Climate Change Assessments," Environmental Law Institute, April 2022. 
    • Panel Speaker, “NEPA Modernization: The Biden Administration’s Re-Write of the Trump Administration’s NEPA Re-Write,” Law Seminars International, January 2022.
    • Panel Speaker, “Difficult Conversations in the Workplace,” NAWL & Women in the Environment, September 2020
    • Panel Speaker, “Bias &The Virus: Combating Institutional Discrimination & Disparity,” The Women in Law Summit Series, July 2020
    • The Environment and Maternal Health Outcomes, Environmental, Energy, and Public Utilities Law Section, National Bar Association - National Convention, New Orleans, Louisiana, July 2018.
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