According to the provisions of Article 52 of the Civil Procedure Law of People's Republic of China (PRC), if one or both parties have two or more persons, and the litigation object is the same, or the litigation object is the same, the people's court thinks that the trial can be combined, and if the parties agree, it is a joint lawsuit.
* * * If one party to the same lawsuit has the same rights and obligations with respect to the subject matter of the lawsuit, the litigation behavior of one party is recognized by other * * * co-litigants, and becomes effective for other * * * co-litigants; If there are no * * * same rights and obligations on the subject matter of litigation, one of the litigants' actions will not be effective for other litigants with the same * * *.
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Basic principles of entrusting an agent ad litem:
1, formulated according to Articles 49, 58 and 59 of the Civil Procedure Law of People's Republic of China (PRC) and Articles 78 and 85 of the Interpretation of the Supreme People's Court on the Application of the Civil Procedure Law of People's Republic of China (PRC), for citizens, legal representatives and agents ad litem to entrust agents ad litem to participate in litigation.
2. The parties, legal representatives and agents ad litem may entrust one or two persons as agents ad litem. The parties have the right to entrust agents ad litem, apply for withdrawal, collect and provide evidence, debate, request mediation, file an appeal and apply for enforcement.