Andrea Delgadillo Ostrovsky


University of Michigan Law School
2005, J.D. cum laude, Order of the Coif

University of Chicago
1998, B.A., Environmental Studies (with honors)


Law Clerk to the Hon. Robert L. Eastaugh
Alaska Supreme Court, 2005 - 2006

Law Clerk to the Hon. Marsha J. Pechman, W.D. Washington
2006 - 2008

Yarmuth Wilsdon Calfo
2008 - 2012

Calfo Harrigan Leyh & Eakes
2012 - 2016

Calfo Eakes & Ostrovsky
2016 - Present

Andrea Delgadillo Ostrovsky

Direct:(206) 407-2216 Fax: (206) 407-2224 Email:

Andrea's practice focuses on white collar criminal defense, complex commercial litigation, and investigations.

Andrea has extensive experience defending businesses, company employees, and witnesses in government investigations and white collar criminal cases, including in False Claims Act, environmental, securities, health care, government contracting, and tax fraud matters.  Andrea also has significant experience handling complex civil matters for both plaintiffs and defendants, including employment disputes and cases involving allegations of fraud, breach of contract, securities violations, and business torts.  In addition to her litigation practice, Andrea regularly conducts corporate internal investigations to assist businesses in responding to government enforcement actions and employment-related claims.

Before starting private practice, Andrea clerked for the Honorable Marsha J. Pechman on the United States District Court for the Western District of Washington and Justice Robert L. Eastaugh on the Alaska Supreme Court.

Andrea has been named a "Super Lawyer" by Washington Law and Politics every year since 2013. In 2016, Andrea was named to Benchmark Litigation's "Under 40 Hot List," an exclusive list compiled through a process of peer review and case examination that honors the nation's "most accomplished legal partners of the age 40 or younger." 

Andrea is a member of the William L. Dwyer Inn of Court and volunteers regularly at the King County Bar Association's Downtown Legal Clinic.  Andrea is also co-founder and co-chair of the Friends of Cheasty Greenspace at Mountainview, a volunteer community group dedicated to restoring park lands in South Seattle. In 2013, Andrea received a Denny Award for Conservation and Environmental Stewardship for her volunteer work at Cheasty Greenspace at Mountainview.