Greg began his career in banking in 1979; working in a variety of roles for financial institutions such as Bank of Hawaii, HomeFed, First Interstate, Wells Fargo, and Western Financial. In 1998, Greg ventured into the accounting industry where he became a Partner and Director of Practice Development. In 2005, Greg established the Client Advocate Network in pursuit of his passion to better serve his corporate clients and professional service allies.

Greg was born in the Philippines and raised in Hawaii. He attended the University of Hawaii where he studied business and marketing.

Greg is recognized in the business community as a market leader and community activist. He belongs to several not-for-profit boards, business organizations, and civic groups notably the Rotary Club, Orange County YMCA, Lincoln Club, Orange County Business Council, National Federation of Independent Business Owners, and the Executive Council at Cal State Fullerton's College.