I still haven't got anything from them, but I saw this listing yesterday: Nude Dancing License - District of Columbia.
The auction is next Tuesday. Deposit required: Only $10,000.
Back in November, the DC City Paper had an article of the state of DC strip clubs and how they're being affected by gentrification, development, and the new baseball stadium.
I guess the strip club licenses are like NYC taxi medallions or something.
I think this calls for extensive online research, plus on-site competitive analysis fieldwork.