Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Lawyer Fred Robert Troll Jr, Practice Areas No known practice areas. is located in the city of calverton, the state of Maryland. Attorney legal address 11785 Beltsville Drivecalverton, MD, 20705. For more information, please call (301) 572-3237 Your comments* (not for publishing) * — Required information Fred Robert Troll Jr ← View details 11785 Beltsville Drivecalverton, MD, 20705, Calverton, Maryland (301) 572-3237