Try Chris and Joe Stumpf in Maryland, both work in DC - Chris at German Embassy, Joe at White House - so they are in your area...
Vom Silbersee German Shepherd Dogs
their kennel is vom Silbersee - they may not have pups right now, but can either get you want you want or point you in the right direction..they have both working and showline dogs - they concentrated on sable showlines, and do blacks with high show ratings (and work/show crossed maybe!!!) as well
Csabre Sch1, Hexe Sch2, SG Bengal, Komet, Kira HGH & Kougar v Wolfstraum ~ Ziberia BH ~ ATB Danger Sch1 RH SAR ~ Kougar Sch3, Kyra Sch3, Cito Sch2, Alice Sch1, Kelsey CD, Ret ~ Basha & Fenja Sch3s