Tyson T. Tamashiro

Tyson T. Tamashiro is an attorney at Tamashiro Sogi & Bonner. He practices in the areas of estate planning, estate administration, probate and trust litigation, conservatorships, and guardianships.

Tyson graduated from Columbia University with a Bachelor of Arts degree in English Literature. He received his Juris Doctorate from the University of Hawaii, William S. Richardson School of Law, where he earned the CALI Award for Excellence in Real Estate Development & Finance, Civil Procedure II, Criminal Procedure, and Second Year Seminar. He was a member of the University of Hawaii Law Review and his Comment, published in the Law Review 2008 Winter Edition, received second place in the American Bar Association Section of Real Property, Trust and Estate Law, 2008 Law Student Writing Contest.

In law school, Tyson completed student volunteer clerkships at the Hawaii Supreme Court and the Hawaii Intermediate Court of Appeals, as well as an externship focusing on land use and real property law at the City and County of Honolulu Corporation Counsel.  He began his career as an attorney in the area of civil litigation, where he gained experience at both the trial and appellate levels before transitioning to a law clerkship at the Circuit Court of the First Circuit, State of Hawaii.  Immediately prior to joining Tamashiro Sogi & Bonner, Tyson worked at Est8Planning Counsel LLLC where he assisted clients with estate planning, probate and trust administration and litigation, conservatorships, and guardianships.

Outside of work, Tyson enjoys spending time with his daughter, traveling, and golfing.

Geoff J Sogi

Geoff J Sogi is an attorney at Tamashiro Sogi & Bonner.  He focuses his practice in the areas of estate planning, long-term care planning, probates, conservatorships, guardianships, and estate and trust administration. 

Geoff graduated from the University of Hawaii at Manoa in 2005 with a Bachelor’s Degree in Political Science with a minor in Japanese.  He received his Juris Doctorate in 2009 from the William S. Richardson School of Law at the University of Hawaii at Manoa.  During his time at Richardson, Geoff was selected for the Scholar Advocacy Program.  Under the guidance of Professors Eric K. Yamamoto and Susan Serrano, Geoff worked on numerous projects focused on civil rights and social justice, including co-authoring a chapter in the 2008 Edition of the Encyclopedia of the Supreme Court of the United States titled, “Korematsu v. United States: Challenging the Japanese American Internment.”

Following law school, Geoff served as the General Counsel and Compliance Officer for a local credit union, and later worked as a regulatory compliance officer at a larger bank where he helped to create a program dedicated to fair lending.  Most recently, Geoff worked as an attorney for Scott C. Suzuki, Attorney at Law, assisting clients with estate, long-term care, and special needs planning, probates, conservatorships, guardianships, and trust and estate administration.

Geoff is licensed to practice law in the State of Hawaii and its District Courts.  He is a member of the Hawaii State Bar Association’s Probate and Estate Planning and Elder Law Sections, the American Bar Association, the Hawaii Estate Planning Council, and the Hawaii Society of Business Professionals.

Geoff volunteers as a Wish Ambassador and Wish Granter for Make-A-Wish Hawaii and serves on the organization’s Young Leaders Board. He is the current-acting Treasurer and a past-President of the Japanese American Citizens League of Hawaii, Honolulu Chapter, and a member of the Phi Beta Kappa International Honor Society.

During his free time, Geoff enjoys golf, comic books, tattoo art, and spending time with family and friends.

Addison D. Bonner

Addison D. Bonner is an attorney at Tamashiro Sogi & Bonner. He concentrates his practice on complex civil litigation, crisis management, and white collar criminal defense. Throughout his practice, Addison has represented individuals and corporations in a variety of business disputes and litigation, including aviation, banking, class action, contract, environmental, healthcare, real property, tax, and telecommunications matters, in both federal and state courts.

Addison graduated from the University of Hawaii at Manoa in 2006 with a Bachelor of Arts Degree. He received his Juris Doctor in 2009 from the William S. Richardson School of Law at the University of Hawaii at Manoa.

Prior to joining Tamashiro Sogi & Bonner, ALC, Addison was a founding partner at Hosoda & Bonner Law Firm. He is licensed to practice law in the State of Hawaii, in the U.S. Court of Appeals (Ninth Circuit), and the U.S. District Court for the District of Hawaii.

Addison is also actively involved in the legal community. He is the immediate past president of the Young Lawyers Division of the Hawaii State Bar Association, a Lawyer Delegate to the U.S. District Court, District of Hawaii, and an arbitrator in Hawaii’s Court Annexed Arbitration Program.

George O. White

George O. White is an attorney at Tamashiro Sogi & Bonner, where he focuses his practice in the areas of estate planning and litigation, including long term care and special needs planning, as well as probates, conservatorships, guardianships and trust administration.

George received his Juris Doctor and a Certificate in Environmental Law from the University of Hawaii’s William S. Richardson School of Law in 2009. Prior to joining Tamashiro Sogi & Bonner, George served as a Deputy Prosecuting Attorney for the City and County of Honolulu and the County of Kauai, and most recently as a Staff Attorney for the Honolulu City Council.