M3 Investment Services Headquarters
990 North Main Street
Royal Oak, MI 48067
Phone: 248-543-3400
Fax: 248-543-3402
Toll-Free: 888-844-7872
Mon-Thu: 8:00 AM - 5:00 PM
Fri: 8:00 AM - 4:30 PM
Muskegon Office
318 Houston Avenue
Muskegon, MI 49441
Phone: 888-844-7872
Fax: 231-332-5905
Toll-Free: 888-844-7872
Mon-Thu: 9:00 AM - 5:00 PM
Fri: 9:00 AM - 4:30 PM
Sat-Sun: By Appointment
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