Mich. Comp. Laws § 555.109

Sec. 9. (1) A financial institution administering a fund may charge a reasonable management fee that does not exceed an amount equal to the value of legitimate services of tangible benefit to the participating accounts that would not have been provided to the accounts were they not invested in the fund. (2) A financial institution administering a fund may charge reasonable expenses incurred in operating the fund. (3) A financial institution shall pay the cost of establishing or reorganizing a fund. (4) A financial institution may deduct the fee and expenses allowed under subsections (1) and (2) from the fund or from the participating accounts in proportion to their interests in the fund.