Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Lawyer Gregory Allen Slate, Practice Areas Car Accident Lawyers. is located in the city of Washington, the state of Columbia. Attorney legal address Po Box 21020Washington, DC, 20009-0520. For more information, please call (443) 937-3529 Your comments* (not for publishing) * — Required information Gregory Allen Slate ← View details Po Box 21020Washington, DC, 20009-0520, Washington, Columbia (443) 937-3529