Skip to main content
Leslie C Clark

Leslie C Clark

Practice areas:

Litigation, Environmental and Natural Resources, Municipal Law

How would you rate this lawyer?

If you’re a current or former client, share your thoughts (anonymously, if you prefer). Would you recommend this lawyer to other clients?

Review Leslie Clark

About Me

Leslie litigates complex civil disputes, primarily arising from business transactions or out of the application of environmental laws and regulations.  She has substantial experience litigating contract and statutory interpretations, commercial class actions, constitutional takings clause claims, environmental cleanups under the federal Superfund Act, and the enforceability of non-competition agreements.


Leslie takes matters to administrative hearing, arbitration, and trial, but also values strategically-timed settlement.  In addition to trial appearances, Leslie has established appellate experience, having argued to the Washington Court of Appeals and briefed issues—including issues of first impression—to all levels of the Washington courts, to the United States Court of Appeals for the Ninth Circuit, and to the Supreme Court of the United States.


Prior to earning her law degree, Leslie obtained seven years of land use planning experience in local government. In addition to her litigation practice, Leslie's prior municipal experience now translates to her representation of several Washington special purpose districts, including water and sewer districts and ports.


Leslie co-chairs Short Cressman's Commercial and Appellate Litigation Group, serves on the firm's Marketing and Media Committee, and is the author of the firm's Jurisdiction blog and Unfair Business Practices blog.


Practice Areas

Licensed since 2005

  1. Litigation: 65%
  2. Environmental and Natural Resources: 20%
  3. Municipal Law: 15%

Attorney Endorsements

1 total

  • Kelly Thomas Wood

    I worked with Leslie on an incredibly complex piece of environmental litigation. I found Leslie to be a supremely competent litigator and a pleasure to deal with personally. I would gladly work with Leslie again, regardless of what side of the "v." our respective clients were on.


    Kelly Wood Environmental and Natural Resources Attorney
    Relationship: Worked together on matter

Contact Info

Calfo Harrigan Leyh & Eakes

999 Third Avenue, Suite 4400
Seattle, WA, 98104



Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Award NameGrantorDate Granted
Rising StarWashington Super Lawyers Magazine2013
Rising StarWashington Law & Politics Magazine2012
Rising StarWashington Law & Politics Magazine2011
Rising StarWashington Law & Politics Magazine2010
Rising StarWashington Law & Politics Magazine2009
Rising StarWashington Law & Politics Magazine2008

Work Experience
TitleCompany NameDuration
AttorneyShort Cressman & Burgess2005 - 2013

Association NamePosition NameDuration
Downtown Seattle Association - Smart Growth and Economic Competitiveness CommitteeMember2012 - Present
Washington State Bar AssociationMemberN/A

Publication NameTitleDate
WSBA's Environmental and Land Use and Law NewsletterCERCLA’s Divisibility Defense: Summary Judgment Ruling in Pakootas v. Teck Cominco Elucidates “Harm” for the Purposes of Divisibility/Apportionment (Co-Author)2012
WSBA's Environmental and Land Use Law NewsletterLingle Lingering: Seven Years after the United States Supreme Court’s Lingle v. Chevron U.S.A., Inc., Washington Courts Have Not Reformed the State’s Regulatory Takings Test (Co-Author)2012
WSBA's Environmental & Land Use Law NewsletterThe State of Regulatory Takings in Washington: Reconsideration of the State's Takings Formula under Lingle v. Chevron U.S.A., Inc.2007
The Water ReportUpper Columbia River Contamination -- A Transboundary Application of CERCLA; Pakootas v. TCM Metals, Ltd."2005
Seattle University Law ReviewA Call to Restructure Existing International Environmental Law in Light of Africa's Renaissance: The United Nations Convention to Combat Desertification and the New Partnership for Africa's Development2003

School NameMajorDegreeGraduated
Seattle University School of LawLawJD - Juris Doctor2004
Duke UniversityN/ABA - Bachelor of Arts1995

Speaking Engagements
Conference NameTitleDate
WASWD Spring ConferenceDo Cities Have the Right to Impose Utility Taxes on Districts, Part 22013
KCBA Environmental and Land Use Section, Brownbag CLECERCLA Litigation: Pakootas v. Teck Metals, Ltd. – Protection of the Upper Columbia River by the Confederated Tribes of the Colville Reservation2013
2013 WASWD Commissioners' WorkshopLegislative 1012013