Lawyer sunzhendong, who obtained a master's degree in law from East China University of political science and law in 1992, has more than 30 years of experience in legal affairs. He has served as an executive of a listed company for 12 years. He is good at dealing with corporate legal affairs (contract review, equity incentive, equity transfer, due diligence, risk control, labor disputes, listing and reorganization) and real estate disputes. He also has rich experience in dealing with criminal cases endangering national security.

Lawyer sunzhendong is good at handling major and difficult cases. The case of house ownership confirmation dispute between Mr. Yu and Mr. Tian and Mr. Liu, which he represented, was rated as a classic guiding case by the Supreme People's court in 2018 and was highly praised by clients.