Mich. Comp. Laws § 124.461

Sec. 11. (1) All tax revenue, or real or personal property or property rights, money, authorizations to levy a tax, and all other rights, duties, and obligations of an existing authority that forms a public authority in accordance with section 3 shall be assumed by and transferred to the public authority created under this act without execution or delivery of any document or instrument transferring or assigning them. (2) A political subdivision forming a public authority under this act, including a political subdivision only a portion of which is part of the public authority pursuant to a decision by the legislative body of the political subdivision, may assign or convey any of its tax revenue, real or personal property or property rights, and all other rights, duties, and obligations involving public transportation service to the public authority formed by the political subdivision. However, a transfer or assignment shall not be made which materially adversely affects the contractual rights of a person having a contract with that political subdivision.