Justin M. Sedell


Practice Emphasis

Divorce, complex child custody disputes, collaborative law, and high conflict litigation


  • Bachelor of Arts, Political Science, 2002, University of California at Davis
  • J.D., cum laude, 2005, Seattle University School of Law
  • IACP Collaborative Law Training (International Association of Collaborative Professionals)
  • IACP Facilitative Mediation Training (International Association of Collaborative Professionals)

Judicial Clerkships

  • Law Clerk, Judge Mary I. Yu, King County Superior Court, 2005-2006
  • Law Clerk, Judge Steven Gonzalez, King County Superior Court, 2006


  • “Domestic Partnerships: Another Look, Additional Rights,” King County Bar Bulletin (2009)
  • “A Family Law Practitioner’s Guide to Navigating the Domestic Partnership Expansion Bill,” Washington State Bar News, co-authored with Elizabeth Hershman-Greven (2008)
  • “Washington’s Expanded Domestic Partnership Registry Grants Important New Rights for GLBT Couples,” Perspective, co-authored with Elizabeth Hershman-Greven (2008)
  • “Legislature Acts Post-Anderson Domestic Partnership Bill Paves Way,” King County Bar Association Bar Journal, co-authored with Elizabeth Hershman-Greven (May 2007)


  • Speaker, “Family Law 101: What You Need to Know,” Pincus Professional Education (2015)
  • Co-Chair, “WSBA Community Property Seminar,” Washington State Bar Association CLE (2012)
  • Speaker, “Introduction to Collaborative Practice,” CLE for family law attorneys (2011)
  • Speaker, “Parenting Plan Litigation,” King County Bar Association CLE (2010)
  • Speaker, “Impacts of Washington’s Domestic Partnership Laws on the Elder Care Community,” CLE (2008, 2009)
  • Speaker, “Parenting Plans and the Uniform Child Custody Jurisdiction and Enforcement Act,” King County Bar Association CLE (2009)
  • Speaker, “Litigating Cases Involving Unmarried Couples,” Snohomish County Bar Association CLE (2009)
  • Speaker, “Understanding Washington’s Domestic Partnership Legislation,” Tacoma Pierce County Bar Association CLE (2008)
  • Speaker, “Relationship Agreements,” King County Bar Association CLE (2008)
  • Speaker, “Washington State’s Domestic Partner Law,” Washington ACLU Seminar (2007)
  • Speaker, Domestic Partner Law Forum, Equal Rights Washington Public Event, Tacoma, WA (2007)
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