Michigan Compiled Laws, Chapter 500. Insurance Code of 1956 § 500.5810

(1) It shall hold bona fide applications for insurance upon which it shall issue simultaneously, or it shall have in force at least 20 policies to at least 20 members for the same kind of insurance upon not less than 200 separate risks, each within the maximum single risk described herein.

(2) The “maximum single risk” shall not exceed 20% of the admitted assets or 3 times the average risk or 1% of the insurance in force, whichever is the greater, any reinsurance taking effect simultaneously with the policy being deducted in determining such maximum single risk.

(3) It shall have collected from each applicant in cash a premium upon each application which premium shall be held in cash or securities in which insurers are authorized to invest and shall be equal to at least $25,000.00: Provided, however, The cash assets of such insurer shall be not less than $50,000.00, 1/2 of which shall be derived from cash premium payments from the original applicants, and the balance may come from premiums on additional applications or contributions as provided in section 5836,  1 and in case of workmen's compensation insurers, the minimum premiums required to be collected from original applicants shall be $50,000.00 with minimum cash assets of $100,000.00 created as heretofore provided in this subdivision.

(4) For the purpose of transacting employers' liability and workmen's compensation insurance the applications shall cover not less than 20 employers having employees of not less than 5,000, each such employee being considered as a separate risk for determining the maximum single risk.