Midland Downtown Partners, LLC Share: Commercial, Office Space RentalReal Estate Development & Investment Midland Downtown Partners, LLC Visit Website 330 Marshall St., Ste. 100 Lansing, MI 48912 (517) 333-4123 (517) 336-8400 (fax) About Map About Commercial Real Estate Development. What's Nearby? Distance: 5 10 15 20 25 50 mi.