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Hadassah (Dessa) Reimer

Of Counsel

25 South Willow Street, Suite 200, P.O. Box 68, Jackson, WY 83001

Dessa Reimer guides clients with projects on public, private, and tribal lands through the complex layers of federal, state, local, and tribal environmental and cultural regulation, including environmental impact assessment, endangered species, and cultural resources.

Dessa defends those same projects against challenges before the federal agencies and in federal court. Dessa employs her experience for a variety of oil and gas, coal, renewable energy, mining, infrastructure, land development, and water clients.  

Prior to joining Holland & Hart, Dessa completed a one-year judicial clerkship with the Honorable William F. Downes (Ret.) of the United States District Court for the District of Wyoming. 


Environmental Compliance and Litigation 
  • Defending project authorizations in litigation and appeals before the Interior Board of Land Appeals and the federal courts 
  • Advising clients regarding NEPA, ESA, and NHPA compliance for major project development 
  • Mineral Leasing Act and Federal Land Policy and Management Act leasing and right-of-way authorizations 
  • Representing client interests throughout Federal land use planning processes 
American Indian Law 
  • Negotiation of mineral leases and rights-of-way for energy, natural resource, and utility projects in Indian Country, including sovereign immunity, Tribal Employment Rights Ordinance (TERO), and allottee issues and Bureau of Indian Affairs approval processes 
  • Representing tribes on a variety of issues, including Indian Education and Self Determination Act (Public Law 638) contract negotiations 
Local Land Use 
  • Navigation of land use regulations and approval processes, includes defense of projects in state court

Client Results

Representative Experience
  • Advised clients throughout the environmental NEPA review and ESA consultation processes for oil and gas, mining, and other projects, including meeting with and negotiating with local, state, tribal, and federal regulators, drafting sections of environmental documents, and submitting official comments on documents.
  • Assisted clients in negotiating and closing mineral resource and access agreements with tribal governments, including conducting tribal due diligence and working with the Bureau of Indian Affairs on approval processes.
  • Advised clients on a variety of public land issues, including trespass, federal jurisdiction, split estate, and permitting issues.
  • Successfully defended numerous large oil and gas projects and permits, mining permits, and mining claims before the Interior Board of Land Appeals and in federal court on NEPA, FLPMA, and other procedural claims.
  • Advised renewable energy companies on NEPA and ESA requirements for operations on public lands.
  • Successfully appealed BLM denial of oil and gas drilling permits on environmental grounds.
  • Advised clients and prepared comments on draft administrative rules and regulations.
  • Advised clients and prepared Candidate Conservation Agreements with Assurances for sage-grouse.
  • Assisted client in developing strategy for reclamation of abandoned open pit mines.
  • Assisted clients in appealing EPA penalty assessment for violation reporting requirements.
  • Assisted client in negotiating right-of-way and other agreements with Native American tribes.
  • Defended oil and gas operators and electric utilities in federal criminal proceedings for violation of the MBTA.
  • Appeared on behalf of oil and gas operator in hearings before the Wyoming Environmental Quality Council to defend release of coalbed methane water.
  • Successfully represented coal companies in royalty and tax litigation with the State of Wyoming, taking cases to Wyoming Supreme Court.
  • Advised client on navigating Wyoming environmental remediation program for site cleanup.
  • Successfully defended libel action against crime victim for statements made in victim impact statement to the court, taking case to the Wyoming Supreme Court.
  • Served as local counsel in intellectual property cases brought in federal court.



Speaking Engagements


Bar Admissions


  • Mountain States Super Lawyers® Rising Stars, Environmental, 2018

Professional and Civic Affiliations

  • Federal Bar Association, Wyoming Chapter, President, 2013-present 
  • ABA Public Lands Committee, Co-chair, 2016-2018
  • ABA Native American Resource Committee, Newsletter Vice-Chair, 2018-present
  • Teton County Bar Association CLE Committee, Chair, 2011-2017
  • Rocky Mountain Mineral Law Foundation, Director, 2017-2018
  • Rocky Mountain Mineral Law Foundation Annual Institute, Trustee, 2014-2016
  • Rocky Mountain Mineral Law Foundation, Administrative Law Special Institute Co-Chair, 2018-2019
  • Rocky Mountain Mineral Law Foundation, NEPA Special Institute Committee Co-Chair, 2017
  • Jackson Hole Stingrays Swim Team, Board President, 2017-present

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