Mertz, Robert A Address: 530 Gratiot St, Hemlock, MI 48626 Phone: (989) 642-2648 Hours: Mon: 9am-5pm Tue: 9am-5pm Wed: 9am-5pm Thu: 9am-5pm Fri: 9am-5pm Lawyers Other Businesses: McDonald's at 120 W Saginaw St, Hemlock, MI 48626