Hi @Lundat0,
Yes, you will have plenty of guests. You will be astonished. I live in Boston, and I would imagine that you might get people at your place for similar reasons that I do. Aside from tourism, you will find people come to DC year round for a variety of reasons, particularly:
-dropping off/picking up/visiting kids at college
-professional conferences
-other professional reasons (interviews, meetings)
The professional visitors, I have found, tend to stay for 3-4 nights, which to me is a perfect length of stay. I'm not doing a changeover daily, but the stay is quick enough so that I'm never feeling like someone will never leave.
happy hosting!