Neb. Rev. Stat. § 21-165

(RULLCA 902) A member may maintain a derivative action to enforce a right of a limited liability company if: (1) the member first makes a demand on the other members in a member-managed limited liability company, or the managers of a manager-managed limited liability company, requesting that they cause the company to bring an action to enforce the right, and the managers or other members do not bring the action within a reasonable time; or (2) a demand under subdivision (1) of this section would be futile.