Lawyers in the same firm cannot represent both parties in the same case.

Lawyers from the same law firm cannot represent both parties in a case at the same time. If two lawyers from the same law firm represent both parties in the same case at the same time, it is a conflict of interest, and the parties must be informed in advance to avoid the conflict of interest. Section 5 Conflicts of Interest and Avoidance of Lawyers' Practice Standards (Trial) Article 76 Conflicts of interest refer to situations where there are conflicts of interest between the clients of the same law firm and other clients of the firm, and the continued agency will directly affect the interests of the relevant clients. Seventy-seventh lawyers and their law firms shall verify the conflict of interest before accepting the entrustment. Only when there is no conflict of interest between the principals can the principal-agent relationship be established. Article 78 If a lawyer who intends to accept the entrustment of a client already knows that the lawyer entrusted by the other party or a party with a conflict of interest is a close relative or other interested party, he shall withdraw, unless the two clients issue an exemption letter. Article 79 After accepting the entrustment, if a lawyer knows that the lawyer appointed by the other party or the party with conflict of interest is his close relative or other interested party, he shall promptly and clearly inform the client of this relationship. If the client raises an objection, the lawyer shall withdraw. Article 80 If a lawyer knows that the other party or a party with conflict of interest has accepted the entrustment and then entrusts another lawyer of the same law firm, the lawyers of both parties shall terminate the entrustment relationship of one party through consultation. If negotiation fails, the entrustment relationship shall be terminated with the party who later signed the entrustment contract or the party who did not pay the lawyer's fee.