Thanks all!
I am foundationless in these hives so hoping that the colonies will produce the drones they need, I hope. I will try raising a few queens this spring for fun, but I'm not planning on putting any of my queen-rearing friends out of business!!
Regarding the legality of bees in DC, the law is a bit amorphous, so we look to how the city regards beekeepers. To date the authorities have not been enforcing any prohibition, and there are plenty of hives out in the open. In fact, the Department of Parks and Rec manages several community gardens into which they have installed hives.
I have 25 new hives I have installed for new beekeepers in DC this year. I have advised them to be discreet in their hive placement away from prying eyes, and to have a source of water nearby.
There is a huge interest in urban beekeeping here, with several local courses being oversubscribed. But rather than proactively lobbying to get the law clarified, the DC bee community has chosen to lay low. I'm not sure that strategy is consistent with my own wiring, and I have been quite aggressive in my outreach to get more hives in DC.