Rule 12.250. Misjoinder and Nonjoinder of Parties
(a) Misjoinder. Misjoinder of parties is not a ground for dismissal of an action. Any claim against a party may be severed and proceeded with separately.
(b) Dropping Parties. Parties may be dropped by an adverse party in the manner provided for voluntary dismissal in rule 12.420(a)(1) subject to the exception stated in that rule. If notice of lis pendens has been filed in the action against a party so dropped, the notice of dismissal must be recorded and cancels the notice of lis pendens without the necessity of a court order. Parties may be dropped by order of court on its own initiative or the motion of any party at any stage of the action on such terms as are just.
(c) Adding Parties. Parties may be added once as a matter of course within the same time that pleadings can be so amended under rule 12.190(a). If amendment by leave of court or stipulation of the parties is permitted, parties may be added in the amended pleading without further order of court. Parties may be added by order of court on its own initiative or on motion of any party at any stage of the action and on such terms as are just.