Dr Cheng is currently practising as a Consultant of a law firm, after having served as its Senior Partner for over 20 years. His areas of practice straddle capital markets, corporate governance, regulatory and compliance. He has been actively contributing to the community, and is currently a member of the Financial Leaders Forum and a director of the Hong Kong Academy of Finance of which he is a Fellow. He has also served in various important positions, including the Chairman of the Education Commission, the government-appointed Director on the Board of Hong Kong Exchanges and Clearing Limited, and the founding Vice-Chairman of the Estate Agents Authority.