A lawyer may not establish or maintain an entrustment relationship with his client.

"Code of Conduct for Lawyers" Article 50 A lawyer or law firm may not establish or maintain an entrusted relationship with the parties in any of the following circumstances: (1) A lawyer acts as an agent for both parties in the same case, or represents legal affairs with conflicts of interest with himself or his close relatives. (4) Different lawyers from the same law firm act as agents of victims and defenders of criminal suspects and defendants in the same criminal case, unless there is only one law firm in the county and the parties have agreed in advance; (5) In civil litigation, administrative litigation and arbitration cases, different lawyers of the same law firm act as agents of both parties to the dispute at the same time, or the firm or its staff are one party and other lawyers of the firm act as agents of the other party; (six) in non-litigation business, in addition to the entrustment of all parties, lawyers of the same law firm also act as agents of interested parties; (seven) after the termination of the entrustment relationship, the same law firm or the same lawyer accepts the entrustment of the other party in the subsequent trial or handling of the same case.