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John P. Ahlers

Attorney Profile

Top Rated Construction Litigation Attorney in Seattle, WA

Ahlers Cressman & Sleight PLLC
1325 4th Ave, Suite 1850
Seattle, WA 98101
Phone: 206-515-2226
Fax: 206-934-1139
Selected to Super Lawyers: 2001 - 2022
Licensed in Washington Since: 1983
Practice Areas: Construction Litigation: Business, Government Contracts
Languages Spoken: English, German
Attorney Profile

Mr. Ahlers is a founding member of the firm, his practice has focused on the resolution of construction disputes since 1983.  John’s experience spans from small private construction to complex engineering, building, heavy construction and insurance matters.  He represents owners, general contractors, subcontractors, suppliers, architects, engineers, and construction industry trade associations.  John has handled a large number of jury and non-jury trials, as well as arbitrations and mediations involving a wide variety of construction related disputes.  Mr. Ahlers has argued cases before all three Divisions of the Washington State Court of Appeals, before the Washington Supreme Court, the Alaska Supreme Court, and before the Federal Circuit, Ninth Circuit and Tenth Circuit Courts of Appeal.

Certificates and Credentials

About John P. Ahlers

First Admitted: 1983, Washington

Professional Webpage:


  • AVVO Rating - 10.0 Superb, 2008 - Present
  • Top 10 Attorneys in Washington, 2012
  • Top 100 Lawyers in Washington, 2008 - Present
  • Utility Contractors Association of Washington Associate of the Year, 2009
  • Lexis Nexis Martindale-Hubbell Rating: AV
  • Seattle's Best Construction Lawyers, Seattle Magazine 2007 - 2011

Pro bono/Community Service

  • Frequent legislative drafting and testimony (Washington State Legislature) concerning statutes of significance to the construction industry (1998 – present): (Statute of Repose, Prompt Payment Act, Attorneys Fees, Bid Protest, Subcontractor Listing Claim Notice)  
  • Frequent amicus brief author for appellate cases of moment to the construction industry for industry groups (AGC, ABC, NECA, NUCA, UCAW, SMACNA and MCA)  
  • Member of Washington State Governor's Board: Capital Projects Advisory Review Board
  • Board of Directors, Utility Contractors Association of Washington (2006 to Present)  

Bar/Professional Activity

  • Washington State Bar Association (Construction and Real Estate Section)
  • American Bar Association (Forum Committee on the Construction Industry, Section of Public Contract Law and Litigation Section)
  • American Arbitration Association (Serves as Arbitrator; Member of Construction Advisory Board, Discovery Advisory Work Group)
  • Alaska State Bar (Public Procurement Section)
  • U.S. Court of Federal Claims, U.S. Court of Appeals for the Federal Circuit, U.S. Court of Appeals, for the Ninth Circuit, U.S. Court of Appeals for the Tenth Circuit, W.S. District Court - Western and Eastern Districts, U.S. Supreme Court
  • Fellow - American College of Construction Lawyers, 2008
  • Oregon State Bar (Construction Section)
  • American Association for Justice

Educational Background

  • B.S. (Civil Engineering) Washington State University  , 1975
  • M.S. (Construction Engineering and Management) Stanford University (Honors), 1976

Scholarly Lectures/Writings

  • Construction Contract Draconian Notice Provisions: Is Prejudice Still the Issue?, Washington State Bar News, 2012
  • AIA Contracts in Washington, Key Clauses in AIA Document 201, 2003 - 2011, Lorman
  • AGC of Washington Lien Manual, 1983 - Present
  • Major Changes to the "One-Call" Statute are Coming: Washington's Underground Utility Damage Prevention Act Goes Into Effect Next Year, NUCA of Washington Focus, 2012
  • Taming the "Under-Ground" Beast Deciphering Differing Site Conditions in Construction, King County Bar Association Bulletin, 2012
  • Construction Law: Examining Contract Notice Provisions, Washington State Bar News
  • Swinging Deals - Should Cranes Swing Agreements Cost Money, Northwest Lawyer, 2015

Industry Groups

  • Arbitration
  • Bonding And Insurance
  • Construction
  • Goverment Contracts
  • Mediation
  • Real Estate
  • Subcontracting
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Office Location for John P. Ahlers

1325 4th Ave
Suite 1850
Seattle, WA 98101

Last Updated: 5/15/2022

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