Mich. Comp. Laws § 141.2304

Sec. 304. If a municipality issues a municipal security subject to this act and the principal and interest for that municipal security will be paid by 1 or more municipalities not issuing the municipal security under a contract, then 1 of the following applies: (a) If all of the municipalities contracting to pay the municipal security have been granted qualified status, then the issuance of the municipal security is subject to section 303(2). (b) Except as provided in subdivision (c), if 1 or more of the municipalities contracting to pay the municipal security have not been granted qualified status, then the issuance of the municipal security is subject to section 303(7). (c) If 1 or more of the municipalities contracting to pay the municipal security have not been granted qualified status and the other municipalities representing over 50% of the contractual obligation have been granted qualified status and the municipality that issues the municipal security has been granted qualified status and pledges its full faith and credit on the municipal security, then the issuance of the municipal security is subject to section 303(2).