mega888 Yamamoto Caliboso Hetherington – A Limited Law Company



Our lawyers have substantial experience in their areas of expertise.  Our firm was founded on the belief that clients deserve excellent legal representation that is also customized and efficient.


Our size enables our principals to provide hands-on representation to each of our clients. Our principals are always intimately involved in all client matters, ensuring that our clients receive representation by the attorneys they have hired.


Yamamoto Caliboso Hetherington is a boutique law firm in Honolulu, Hawaii, which concentrates on helping clients with corporate, energy, financing, real estate, regulatory and public utility law.

Resources & Reach

When client matters require it, we augment our core team with other outstanding law firms and attorneys in Hawaii, the U.S. Mainland and abroad with whom we have developed alliances and close working relationships.

Energy Law

We have one of Hawaii’s largest law practices in the area of renewable energy, with industry-leading experience representing independent power producers. Clients include developers of wind, solar, hydro, biomass, and biofuel projects. We also work with buyers and sellers in the distributed generation industry.


Real Estate

Our firm has broad experience in Hawaii’s real estate market, representing owners, lenders, developers, lessors and lessees of commercial, industrial, resort and residential real estate. Our attorneys provide clients with the entire range of services needed to achieve their goals.



We provide a range of legal services to organizations conducting business in Hawaii, having built long-term relationships with many of them. Our attorneys have formed and represent corporations, partnerships, limited partnerships and limited liability companies. We handle mergers and acquisitions, stock and asset transactions, and corporate governance matters.



Our attorneys work on a range of finance transactions with the expertise to assist with all aspects of the deal, including deal structure, negotiation and documentation. We work with developers to gain appropriate financing for development and construction, and with commercial and investment banks in Hawaii and abroad.


Regulatory & Public Utility

Our attorneys handle regulatory matters for clients in the energy, telecommunications, water, sewer, cable and transportation industries, with a particular focus on issues involving the Hawaii Public Utilities Commission. We serve as regulatory counsel for most of Hawaii’s utility-scale independent power producers, as well as for key players in the telecommunications industry.