Michigan Compiled Laws, Chapter 600. Revised Judicature Act of 1961 § 600.5839

(a) Six years after the time of occupancy of the completed improvement, use, or acceptance of the improvement.

(b) If the defect constitutes the proximate cause of the injury or damage for which the action is brought and is the result of gross negligence on the part of the contractor or licensed architect or professional engineer, 1 year after the defect is discovered or should have been discovered. However, an action to which this subdivision applies shall not be maintained more than 10 years after the time of occupancy of the completed improvement, use, or acceptance of the improvement.

(a) “Contractor” means an individual, corporation, partnership, or other business entity that makes an improvement to real property.

(b) “State licensed architect or professional engineer” or “licensed professional surveyor” means an individual so licensed, or a corporation, partnership, or other business entity on behalf of whom the state licensed architect or professional engineer or licensed professional surveyor is performing or directing the performance of the architectural, professional engineering, or land surveying service.