Mich. Comp. Laws § 556.127: Postponement of vesting of future interests; facts and circumstances to be considered.

Sec. 17.

When the period during which the vesting of a future interest may be postponed must be computed from the time of the creation of a power, with respect to interests sought to be created by an instrument exercising the power, facts and circumstances existing at the effective date of the instrument exercising the power shall be taken into account.