Iowa R. Civ. P. 1.279
As amended through Septmber 9, 2024
Shareholders in an incorporated or unincorporated association, who sue to enforce its rights because of its failure to do so, shall support their petition by affidavit, and allege their efforts to have the directors, trustees or other shareholders bring the action or enforce the right, or a sufficient reason for not making such effort.
Iowa. R. Civ. P. 1.279