Admitted as solicitor of the Supreme Court of Hong Kong in 1971

Admitted as solicitor of the Supreme Court of England in 1975

Appointed as Notary Public by Archbishop of Centerbury,England in 1977 and so registered in Hong Kong in 1977

Admitted as barrister and solicitor of the Australian Capital Territory in 1977

Founder of the firm C. T. Chan & Co. in 1977

Admitted as advocate and solicitor of the Supreme Court of Singapore in 1991

Appointed as China Appointed Attesting Officer since 1995

Appointed as Hong Kong Civil Celebrant of Marriages in 2006