Michigan Compiled Laws, Chapter 700. Estates and Protected Individuals Code § 700.7506

(a) During the lifetime of the settlor, the property of a revocable trust is subject to claims of the settlor's creditors.

(b) After the death of a settlor, and subject to the settlor's right to direct the source from which liabilities will be paid, the property of a trust that at the settlor's death was revocable by the settlor, either alone or in conjunction with another person, is subject to expenses, claims, and allowances as provided in section 7605.  1

(c) With respect to an irrevocable trust, a creditor or assignee of the settlor may reach no more than the lesser of the following:

(a) During the lifetime of the individual's spouse, the only distributees or permissible distributees of the trust income or principal are either of the following:

(b) The individual retains a beneficial interest in the trust income, trust principal, or both, which beneficial interest follows the termination of the individual's spouse's prior beneficial interest in the trust.

(a) If the settlor is the individual's spouse, regardless of whether or when the individual was the settlor of a trust for the benefit of that spouse.

(b) To the extent that the property of trust was subject to a general power of appointment in another individual.