Andrew Tsoming is an attorney in the firm’s Municipal practice group, who assists municipal clients with a full range of legal issues, including advice on land use, public records, and code compliance matters. As a former trial attorney, Andrew is a skilled communicator, who provides plain, practical advice to his clients while helping them navigate complex legal issues.

Prior to joining OMW, Andrew was an attorney with Kenyon Disend, a boutique municipal law firm in Issaquah, Washington. At Kenyon Disend, Andrew served as an Assistant City Attorney to a several of local cities, including the cities of Sammamish, Tukwila, and North Bend. Andrew’s previous work includes advising and representing clients on issues such as, constitutional law, land use, contract review and negotiation, interlocal agreements, franchise agreements, code compliance, legal review of police issues, drug forfeitures, ethics, and the Public Records Act.

Before practicing municipal law, Andrew spent eight years as an Assistant City Prosecutor with the Seattle City Attorney’s Office, where he was responsible for the prosecution of simple and gross misdemeanor crimes. As a Prosecutor, Andrew tried over forty jury trials to verdict and negotiated countless cases to resolution. In his last year with the Seattle City Attorney’s Office, Andrew served as the South Precinct Liaison Attorney, where he provided real-time legal advice to various City departments including the Seattle Police Department.

Andrew is a proud Seattle-area native. He received his B.A. in Political Science and Psychology from the University of Washington and graduated in the top 15% of his class at Seattle University School of Law. In his spare time, Andrew enjoys games, photography, food adventures, trivia, and rooting for Seattle’s underachieving sports teams.

Practice Areas

Association Memberships

  • Washington State Association of Municipal Attorneys
  • Washington State Bar Association
  • William L. Dwyer Inns of Court
  • Asian Bar Association of Washington


  • J.D., Seattle University School of Law
  • B.A. University of Washington

Professional and Community Activities

  • Asian Bar Association of Washington International District Legal Clinic
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