Mich. Comp. Laws § 123.10
That in all cases where the boundaries of cities or townships have been heretofore changed in the manner specified in section 1 of this act, and no settlement of the matters in difference between said cities, or city and townships, has been arranged, and no division of the moneys, rights, credits and personal property of said cities or townships made, or no apportionment of the indebtedness due from the city or township from which territory has been detached in making the division, shall have been made, the provisions of this act shall apply; and the provisions of this act shall extend to such cases and a settlement of said matters made and enforced in the same manner as though said division were made after the passage and taking effect of this act.
MCL 123.10