Michael J. O’Malley

Michael J. O’Malley

I was born and raised in Hawai‘i, but lived in a number of places on the mainland, ending up on Wall Street. I returned home because I wanted my children to realize the benefits of living in one of the most ethnically diverse places in the world.

Mike helps clients in their initial organization, structuring and business dealings. He also represents clients in mergers and acquisitions, capital and other financings, and regulatory compliance.

Mike regularly counsels clients on tax planning matters and in proceedings before tax authorities. He also works with clients on corporate governance and fiduciary duties.

Mike served as editor-in-chief of the Harvard Journal on Legislation and was a teaching assistant at Harvard Law School.

Following graduation, he practiced with a Wall Street firm in New York City for four years, then returned home to Hawai‘i and joined Goodsill, where he became a partner in the firm’s corporate and tax groups.  He rejoined the firm in 2008, following a 15-year hiatus during which he was a partner at another law firm and then worked for nine years as a director with PricewaterhouseCoopers and its successor in Hawai‘i.


For over 20 years, Mike has been a volunteer director and chair with Hawai‘i Pacific Health affiliates, including Kapi'olani Health Foundation and Kapi'olani Medical Center for Women and Children.

Got a soccer question? Ask Mike. He’s been a referee for Hawai‘i high school and youth soccer leagues for over 30 years.


Harvard Law School, J.D., 1981
Claremont-McKenna College, B.A. (summa cum laude), 1977


Ninth Circuit Court of Appeals
State Courts of Hawai‘i
U.S. Claims Court
U.S. District Court of Hawai‘i
U.S. District Court of New York (S.D.N.Y)
U.S. Tax Court


American Bar Association, Tax, Business and Health Law Sections
American Health Lawyers Association
Friends of Family Specialty Courts, President and Director
Hawai‘i Association of Nonprofit Organizations
Hawai‘i State Bar Association
Healthcare Association of Hawai‘i
Kapi'olani Medical Center for Women & Children, Director
Mental Health America of Hawai‘i, Advisory Board
Oahu Economic Development Board, Director
Pu‘ulu Lapa‘au, Director
Tax Foundation of Hawai‘i, Director


The Best Lawyers in America, 2021
The Best Lawyers in America, Lawyer of the Year in Honolulu, 2012, 2015-2017, 2019-2021
Chambers USA, 2020
Super Lawyers, 2020
Hawaii Chapter Co-author, ABA Real Property Tax Deskbook