Owners can sue seven owners at a time. Can the defendant's owner defend other owners?

Property owners can sue seven owners at a time, and the defendant's owner can defend other owners. The property needs to judge whether it needs to inform multiple owners at one time according to the specific situation. For example, if multiple owners have the same illegal behavior or caused some problems, they can send a letter of notification or complain to multiple owners. The defendant's owner has the right to defend or reply to the notification letter or complaint, including defending other defendant's owners. However, it should be noted that each owner's violations and responsibilities are independent, and his responsibilities cannot be offset by other owners' violations.