Michigan Compiled Laws, Chapter 500. Insurance Code of 1956 § 500.5925

Sec. 5925. (1) If the mutual company complies substantially and in good faith with the notice requirements of this chapter, the mutual company's failure to give a member the required notice does not impair the validity of any action taken under this chapter.

(2) Except as otherwise provided, an action challenging the validity of or arising out of acts taken or proposed to be taken under this chapter, other than an action challenging the commissioner's decision approving or disapproving the plan, shall be commenced within 30 days after the eligible members have approved the plan. An action based upon noncompliance with a business plan submitted under section 5903(2)(f)  1 shall be commenced in Ingham county circuit court within 3 years after the cause of action has accrued, or within 2 years after the time when the cause of action is discovered or should reasonably have been discovered by the complainant, whichever occurs first.

(3) Notwithstanding section 244, an action challenging the validity of the commissioner's decision approving or disapproving the plan shall be commenced within 30 days after the commissioner's decision.