William Hsu

Managing Shareholder

Phone (425) 455-3900 ext. 109


William (Bill) Hsu is the Managing Shareholder of Oseran Hahn P.S. and a leading transactional attorney in the Pacific Northwest. He provides his domestic and international clients with expert insights and pragmatic solutions in conducting business transactions in today’s fast-moving economy. Bill has extensive experience in a variety of legal matters, including cross-border international transactions, business and tax planning, securities offerings, corporate governance, mergers and acquisitions, as well as real estate acquisitions, development, dispositions, financing, and leasing.

With a unique blend of past public accounting experience and legal knowledge, Bill can provide a multifaceted platform for his broad clientele. Born and raised in Taiwan, he is also fluent in Mandarin Chinese and uses his language and cultural understanding to facilitate a large volume of inbound investments from Asia into the United States. He devises strategies and provides implementation guidance for his clients’ investment and development projects, including industrial, high-rise offices, mixed-use buildings, retail and condominium projects, residential communities, hotels and restaurants. Bill’s clients appreciate his pragmatic, result-oriented approach, as well as his dedication to provide top-notch and responsive legal services.

Bill received his law degrees from Georgetown University Law Center with distinctions and Seattle University School of Law with honors. When he is not serving his domestic and international clients, he enjoys building and customizing cars, racing his project cars on track days and coaching a variety of youth sports – especially baseball – with his sons.

Who are your pets?
Mia and Lotto, beagles (retired in 2017)

What is your guilty food obsession?
Sweets. Love a good dessert with coffee after dinner. Key lime pie, coconut cream pie, pie in general…

What are three words that describe you?
Intense, driven and ambitious

What are you famous for?
Work ethic and lack of sleep

What is your favorite quote?
Everyone has a plan ‘till they get punched in the mouth. – Mike Tyson

What is your favorite beverage?
Bubble Tea!

What is your hidden skill?
I function on 30-hour days, not 24….