Michigan Compiled Laws, Chapter 487. Financial Institutions § 487.11104

Sec. 1104. (1) This act does not impair or affect an act done, offense committed, or right accruing, accrued, or acquired, or liability, penalty, forfeiture, or punishment incurred before the effective date of this act, but may be enjoyed, asserted, enforced, prosecuted, or inflicted as if this act had not been enacted.

(2) Proceedings to assert, enforce, prosecute, or inflict a right or obligation by or against a bank may be consummated under the law in force at the time the proceedings were commenced. All prosecutions pending on or instituted after the effective date of this act for offenses committed before the effective date of this act may be continued or instituted under the law in force at the time of the commission of the offense.

(3) This act shall not be construed to affect the legality of investments made or of transactions conducted, under any provisions of law in force when the investments or transactions were made or conducted, nor to require the change of investments for those named in this act, except to prevent loss, or injury to the institution, or to the borrowers on the securities. Extension of such loan or investment shall not be made by any institution, unless necessary to avoid loss as provided in this subsection.

(4) An institution that may be incorporated under this act shall not be incorporated after the effective date of this act except under this act.

(5) An institution governed by the terms of this act organized and incorporated before the effective date of this act under any law of this state, which if now incorporated would be required to incorporate under and be subject to this act, shall be subject to this act without formal reorganization under this act and shall be considered to exist under this act. This act shall govern all institutions incorporated in this state.

(6) This act shall not be construed as attempting to deprive any institution of any constitutional power, right, privilege, or franchise that the institution now enjoys.

(7) Except as provided in section 2402(4),  1 notwithstanding any other provision of law, a bank shall not be subject to the provisions of the business corporation act, 1972 PA 284, MCL 450.1101 to 450.2098.

(8) There is no limit upon the amount or share of deposits held or controlled in this state by a bank, out-of-state bank, national bank, or bank holding company on a consolidated basis.