Hi everyone! Does anyone have any recommendations for lovely places to host 14-person team retreats in D.C. (including Maryland/Virginia), Philly, or Providence?

Some guidelines:

Budget is mid range (~$350/ per room per night)

We love places where we can either take over a really nice suite and use that as our workspace or if this have a nice loungey room that could work as well!

Any recommendations would be immensely appreciated!