Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Lawyer Dennis D. Costello, Practice Areas No known practice areas. is located in the city of Williams Bay, the state of Wisconsin. Attorney legal address 342 Pierce DrWilliams Bay, WI, 53191-9403. For more information, please call (262) 215-3144 Your comments* (not for publishing) * — Required information Dennis D. Costello ← View details 342 Pierce DrWilliams Bay, WI, 53191-9403, Williams Bay, Wisconsin (262) 215-3144