Teru Olsen is a Shareholder at Oseran Hahn and an experienced business advisor and litigator, with a practice that spans business litigation, employment, real estate disputes, insurance coverage, and creditor-debtor work.
Teru began practicing in the Seattle area in 2008, working in debtor-creditor matters, real estate law and litigation, employment, transactions and disputes for growing companies, insurance-policy litigation on both the insurer and policyholder sides, and general business advising for small-market companies. He has handled matters at both ends of the spectrum, from a dispute between neighbors to the representation of a Fortune 500 company in a federal jury trial, and the range has taught him to read a problem from several legal angles at once. Clients credit him with clear explanations of their options, the legal hurdles, the fee budget, and the realistic outcome.
He grew up in Kirkland and is a graduate of Santa Clara University (2005) and Seattle University School of Law (2008). He began his career at Ryan, Swanson & Cleveland, PLLC, where he became a partner in 2016, and joined Oseran Hahn in January 2018 as a Principal, entering the partnership a year later. He is admitted in the Washington state courts and before the U.S. District and Bankruptcy Courts for the Western District of Washington and the Ninth Circuit Court of Appeals.
Teru has been named to Washington Super Lawyers in 2025 and 2026, after earlier recognition on the Rising Stars list from 2014 to 2018. He is a member of the Washington State Bar, the King County Bar Association, and the Asian Bar Association of Washington, and he recently completed six years as a Trustee of the Washington State Bar Foundation. Away from work, he spends his time with his family of five and the family’s Black Lab, Filly.