From 91 North/South take exit 35. At top of ramp, take left, if coming from the north, or right, if coming from the South. You are now on Route 218, Cottage grove Road. Continue on this road until you pass the Copaco Shopping center (Stop & Shop, IHOP, Burlington Coat factory). Once you go over a set of train tracks, you will come to a set of lights. Take a left onto Northwestern Drive. Our office is located in Building #3.