Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Lawyer Eric M. DeCoster, Practice Areas No known practice areas. is located in the city of Onset, the state of Massachusetts. Attorney legal address Po Box 606Onset, MA, 02558-0606. For more information, please call (508) 848-8030 Your comments* (not for publishing) * — Required information Eric M. DeCoster ← View details Po Box 606Onset, MA, 02558-0606, Onset, Massachusetts (508) 848-8030