An experienced legal professional, Dr. Yu is currently the senior partner of Messrs Yu Tsang & Loong, Solicitors and Notaries Public. He has been a solicitor of the Supreme Court of England and the Supreme Court of Hong Kong since 1966, a notary public of Hong Kong since 1974, and has been admitted to the Supreme Court of Singapore as well as Victoria, Australia. Dr. Yu has contributed significantly to the legal profession in Hong Kong by taking up various public and community services, including membership of the Disciplinary Committee of the Law Society of Hong Kong and of the Board of Review (Inland Revenue Ordinance) Hong Kong. He has been very supportive of the development of Shaw College at CUHK by making generous donations to various causes, including college development, scholarships, bursaries, amenities and facilities renovation, art and culture. He has also served as a member of the Board of Trustees of Shaw College since 2005.