The Delaware Rules of Civil Procedure lay out rules for bringing and maintaining a stockholder derivative action. Compliance with these rules is necessary in order for a claim to stay in court. Often times, defendants will move to dismiss a plaintiff's claim for failure to comply with the requirements of Rule 23.1.
The Rule 23.1 Motion to Dismiss often revolves around the characterization of the claim (direct v. derivative) and the independence of the directors (demand required/demand futility).
Rule 23.1. Derivative actions by shareholders.
(a) In a derivative action brought by one or more shareholders or members to enforce a right of a corporation or of an unincorporated association, the corporation or association having failed to enforce a right which may properly be asserted by it, the complaint shall allege that the plaintiff was a shareholder or member at the time of the transaction of which the plaintiff complains or that the plaintiff's share or membership thereafter devolved on the plaintiff by operation of law. The complaint shall also allege with particularity the efforts, if any, made by the plaintiff to obtain the action the plaintiff desires from the directors or comparable authority and the reasons for the plaintiff's failure to obtain the action or for not making the effort.
(b) Each person seeking to serve as a representative plaintiff on behalf of a corporation or unincorporated association pursuant to this Rule shall file with the Register in Chancery an affidavit stating that the person has not received, been promised or offered and will not accept any form of compensation, directly or indirectly, for prosecuting or serving as a representative party in the derivative action in which the person or entity is a named party except (i) such fees, costs or other payments as the Court expressly approves to be paid to or on behalf of such person, or (ii) reimbursement, paid by such person's attorneys, of actual and reasonable out-of pocket expenditures incurred directly in connection with the prosecution of the action. The affidavit required by this subpart shall be filed within 10 days after the earliest of the affiant filing the complaint, filing a motion to intervene in the action or filing a motion seeking appointment as a representative party in the action. An affidavit provided pursuant to this subpart shall not be construed to be a waiver of the attorney-client privilege.
(c) The action shall not be dismissed or compromised without the approval of the Court, and notice by mail, publication or otherwise of the proposed dismissal or compromise shall be given to shareholders or members in such manner as the Court directs; except that if the dismissal is to be without prejudice or with prejudice to the plaintiff only, then such dismissal shall be ordered without notice thereof if there is a showing that no compensation in any form has passed directly or indirectly from any of the defendants to the plaintiff or plaintiff's attorney and that no promise to give any such compensation has been made. At the time that any party moves or otherwise applies to the Court for approval of a compromise of all or any part of a derivative action, each representative plaintiff in such action shall file with the Register in Chancery a further affidavit in the form required by subpart (b) of this rule.