Diana Sumarna


Diana Sumarna concentrates her practice in the areas of estate planning and probate, commercial and corporate law, with a special passion for international business law.

Diana graduated from the William S. Richardson School of Law, with certificates in International and Comparative Law as well as Pacific-Asian Legal Studies. During her law school career, Diana served as the Secretary of the Student Bar Association, the President of the Law & Business Organization, a member of the Phi Delta Phi International Legal Honor Society, and a community member of CodeX at the Stanford Center for Legal Information. Diana additionally spent some time externing with the University of Hawaii’s Office of Legal Affairs and General Counsel and with Hayabusa Asuka Law Offices in Tokyo, Japan.

Diana’s background also includes experience in life and chemical sciences and national credentials as a senior professional in Human Resources as well as a project manager, focusing on performance and organizational culture optimization in both public and private sectors.

Associations & Memberships

American Bar Association
Federal Bar Association
Hawaii State Bar Association
Hawaii Women Lawyers
National Asian Pacific American Bar Association
Senior Certified Professional (2018), Society for Human Resource Management
Senior Professional in Human Resources (2015), HR Certification Institute
Lean Six Sigma Green Belt (2015), University of Georgia, Terry College of Business
Certified Associate in Project Management (2015), Project Management Institute
Project Management Certification (2014), University of Georgia, Terry College of Business


US District Court, District of Hawaii (2022)
Hawaii State Bar (2022)


J.D. (2021), University of Hawaii, WIllam S. Richardson School of Law,
M.B.A., Human Resource Management (2012), University of Phoenix
B.S., Biochemistry and Molecular Biology (2005), University of Georgia

Awards & Recognition