I did a fellowship in DC for 3 months about 13 years ago and stayed at Thompson-Markward Hall. Right on Capitol Hill, in fact the Library of Congress was right there, nice area. Website is http://www.ywch.org/about.htm I was satisfied with the place for the time I stayed there, the inclusion of meals was a big plus. As long as she doesn't have a boyfriend that intends to visit it's fine for these types of temporary stays.