Ohio Civ.R. 23.1
In a derivative action brought by one or more legal or equitable owners of shares to enforce a right of a corporation, the corporation having failed to enforce a right which may properly be asserted by it, the complaint shall be verified and shall allege that the plaintiff was a shareholder at the time of the transaction of which he complains or that his share thereafter devolved on him by operation of law. The complaint shall also allege with particularity the efforts, if any, made by the plaintiff to obtain the action he desires from the directors and, if necessary, from the shareholders and the reasons for his failure to obtain the action or for not making the effort. The derivative action may not be maintained if it appears that the plaintiff does not fairly and adequately represent the interests of the shareholders similarly situated in enforcing the right of the corporation. The action shall not be dismissed or compromised without the approval of the court, and notice of the proposed dismissal or compromise shall be given to shareholders in such manner as the court directs.
Ohio. Civ.R. 23.1