Contact Courtney L. Seim

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Lawrence C. Locker

Litigation Attorney

315 Fifth Avenue S, Suite 1000
Seattle WA 98104

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Courtney L. Seim

Real Estate & Land Use, Environmental

(206) 676-7045

Profile Introduction

Courtney represents and counsels clients in a wide array of environmental and real estate matters. Her environmental projects have included enforcement and remediation actions under CERCLA and MTCA, natural resource damages claims, and business and real estate transactions involving environmental constraints. In addition, Courtney has assisted clients on matters involving the Clean Air Act and the Clean Water Act. Courtney’s practice also focuses on real estate issues, including eminent domain actions, title disputes, and boundary, easement, access, adverse possession and prescriptive easement claims.



Best Lawyers Award Badge


  • King County Bar Association


  • UC Davis School of Law (J.D., 2004); Managing Editor, UC Davis Law Review
  • University of Washington (B.A., 1999)

Bar Admissions

  • Washington State

Community Service

  • KIND Washington Advisory Committee


  • Selected to Washington Super Lawyers (2014-2019)

Publications & Speaking Engagements

  • CLE Presenter, “Tenant Beware: Discussion of Often Litigated Lease Provisions, Contamination, and How to Protect Yourself,” May 2014
  • Co-Author, “Changes to the Phase I Environmental Site Assessment–EPA Adopts ASTM E1527-13,” January 23, 2014
  • CLE Presenter, “Selling or Buying a Business with Environmental Issues,” WSBA Business Law Section Mid-Year CLE, May 13, 2011
  • Co-Author, “Working With Environmental Consultants: Best Practices for Preserving Attorney-Client Privilege and Work Product Protection,” March 23, 2010
  • CLE Presenter, “Attorney-Client Privilege and Ethical Issues for In-House Counsel,” November 2009
  • Co-Author, “Supreme Court’s Burlington Northern Decision Considers the Scope of Liability under CERCLA,” Washington State Bar Association Environmental & Land Use Law Newsletter, Vol. 36, No. 2 (August 2009)