Michigan Compiled Laws, Chapter 500. Insurance Code of 1956 § 500.8145

Sec. 8145. (1) All unclaimed funds subject to distribution remaining in the liquidator's hands when he or she is ready to apply to the court for discharge, including the amount distributable to a creditor, shareholder, member, or other person who is unknown or cannot be found, shall be deposited with the state treasurer, and shall be paid without interest except in accordance with section 8142  1 to the person entitled or his or her legal representative upon proof of right to it satisfactory to the state treasurer. An amount on deposit not claimed within 6 years from the discharge of the liquidator shall be considered to have been abandoned, shall escheat to the state without formal escheat proceedings, and shall be deposited in the general fund.

(2) All funds withheld under section 8137  2 and not distributed shall be deposited, upon discharge of the liquidator, with the state treasurer and paid by him or her in accordance with section 8142. Sums remaining which under section 8142 would revert to the undistributed assets of the insurer shall be transferred to the state treasurer and become the property of the state under subsection (1), unless the commissioner in his or her discretion petitions the court to reopen the liquidation under section 8147.  3