Michigan Compiled Laws, Chapter 125. Planning, Housing and Zoning § 125.79

Sec. 9. If previous to the lease, sale or exchange of any real property in the development area, the local legislative body desires to modify the development plan, it shall hold a public hearing thereon, notice of such hearing to be given as provided in section 4 of this act.  1 If the modification be approved by the local legislative body, it shall become a part of the approved development plan.

The part of a development plan which directly applies to a parcel of real property in the area, may be modified by the local legislative body at any time or times after the transfer or lease or sale of the parcel of real property in the area provided that the modification be consented to by the lessee or purchaser.