Warren has been a practicing accountant based in Christchurch since the late 1990s. He has specialised exclusively in assisting and advising small and medium size businesses, including companies, trusts, registered charities, partnerships and individuals with their taxation and financial affairs. He has extensive experience in business structuring, tax planning and strategy, advising on business purchases and sales and establishing efficient cost effective accounting and compliance systems for businesses.
He is fluent in Japanese and thus has also developed a niche helping Japanese and those who have foreign or international investments and business interests.
Warren mixes accountancy with interests in music, where he also has a university degree in piano performance, gardening, tramping and watching rugby. Together with his wife he has two young adult children.