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Benjamin A. Mayer

Fax +1.206.623.7022

Ben Mayer is an associate in K&L Gates’ Seattle office. Mr. Mayer’s practice focuses on energy, environmental, federal Indian law, land use, and natural resource issues. He counsels public and private clients on the requirements of and compliance with federal and state environmental laws and regulations, federal and state land use laws and regulations, and federal and state energy laws and regulations, including utility regulatory and public policy issues. Mr. Mayer’s practice involves advising and representing clients on these issues in:

  • the siting, permitting, and development of energy and infrastructure projects
  • the acquisition and sale of real property
  • condemnation and relocation actions
  • mergers and asset acquisitions
  • environmental cleanup matters
  • administrative proceedings
  • litigation

Mr. Mayer’s Indian law practice involves representing clients in negotiations and transactions with Indian tribes on issues related to sovereign immunity, tribal jurisdiction, treaty rights, historic and cultural resources, gaming, and taxing. He has advised clients on these matters in relation to financial services agreements, oil and gas leases, contracts for goods and services, license agreements, individual Shellfish Management Plans (SMPs), property acquisition financing, environmental impact statements, and interlocal taxing agreements.

Professional Background

Prior to joining K&L Gates, Mr. Mayer served in the United States Army, including service in Iraq where he repaired and installed WARLOCK devices in all types of military vehicles. After returning from Iraq, he established the Veterans Student Union at the University of California, Irvine and was a founding member of the Student Veterans of America.


  • Recognized as Washington “Rising Star” by Super Lawyers, 2018 - 2019

Professional/Civic Activities

  • Board Member, Seattle Sports Commission, 2017-Present
  • Content Editor, King County Bar Association Washington Lawyer Practice Manual, Indian Law Chapter, 2014-Present

Speaking Engagements

  • Speaker, “Tax Developments Provide Opportunities for Economic Growth in Indian Country,” myLawCLE, June 2019
  • Panel Moderator, “Expanding Opportunities: Innovative Approaches to Procuring Renewable Energy,” Northwest Environmental Business Council (NEBC) Washington’s Energy Future Conference, November 2017

Additional Information

  • “Washington Lawyers Practice Manual,” Indian Law Chapter, Content Editor, King County Bar Association, 2014-2016
  • Represent local governmental entity in allocation of cleanup costs for the Lower Duwamish Waterway Superfund Site.
  • Represent shipyard in allocation of cleanup costs for the Portland Harbor Superfund Site.
  • Represent metals engineering and manufacturing company at cleanup sites throughout the United States.
  • Advise global farmland and timberland portfolio development and management company on compliance with state and federal cleanup laws in property acquisitions.
  • Represented private individual in recovering cleanup costs associated with spill of underground storage tank from potentially responsible parties and insurance carriers.
Indian Law (North America)
  • Represent the Duwamish Tribe in its efforts to obtain federal recognition.
  • Advise renewable energy developer in the development of renewable energy projects on trust lands in partnership with federally recognized Indian tribes.
  • Represented healthcare software company to negotiate and implement license agreement with tribal hospital.
  • Advised agribusiness financier regarding acquisition financing for property located on Indian reservation.
  • Represented school district in negotations with a federally recognized Indian tribe for implementation of a local taxing agreement.
  • Advised major resort and casino regarding state legislation designed to allow federally recognized Indian tribes to develop and operate off-reservation casino.
  • Represented an investment management company to negotiate and implement financial services agreements with a federally recognized Indian tribe.
  • Advised Canadian governmental entity on tribal rights under the Maine Indian Claims Settlement Act.
Utility Regulatory
  • Represent local governmental transit agency to obtain sustainable power for the electrification of its bus fleet.  
  • Advise airline catering services company regarding resolution of water utility back charges.
  • Represented proposed purchaser in $5.3 billion acquisition of investor-owned electric and natural gas utility, including in proceedings to obtain approval from five state utility commissions.
  • Represented Microsoft in obtaining regulatory approval and negotiating related documents for purchase of carbon-free power from third party supplier.
  • Represented King County in Administrative Procedure Act appeal of a Washington Utilities and Transportation Commission order regarding responsibility for costs to replace transmission line.