My spouse and I have own a nice house in the quiet suburbs of DC (technically Silver Spring) with two extra bedrooms, both of which have queen beds and are fully furnished. There is also a separate bathroom for you. We have all of the bedding and towels, etc., one would need. You would be generally be expected to buy your own groceries. There is plenty of street parking.
We are a very, very trans-friendly couple and do a lot of LGBT and transgender-specific advocacy in our spare time.
We are about a mile from Glenmont Metro (it takes us 18 minutes to walk there). Then the Metro into downtown is about a 30 minute ride.
I do not have a tumblr account but can be reached at firstname.lastname@example.org.