Mich. Comp. Laws § 500.4439
A person whose life is insured under a group insurance policy may, subject and pursuant to the terms of the policy, or pursuant to an arrangement between the insured, the employer and the company, assign (other than to the employer) all or any part of his incidents of ownership, rights, title and interests, both present and future, under such policy including specifically, but not by way of limitation, the right to designate and redesignate a beneficiary or beneficiaries thereunder, the right to make any requisite contributions to maintain the insurance in force, and the right to have an individual policy issued to him in case of termination of employment. Such an assignment by the insured, made either before or after the effective date hereof, is valid for the purpose of vesting in the assignee, in accordance with any provisions included therein as to the time at which it is to be effective, all of such incidents of ownership, rights, title and interests so assigned, but without prejudice to the company on account of any payment it may make or individual policy it may issue prior to receipt of notice of the assignment. This section is not intended to alter the law of this state but is intended only to confirm in express statutory form the law as it exists presently.
MCL 500.4439