IS there a subway station that runs close to the hotel or do you offer a shuttle to the nearest subway station?

Yes and yes

Yes

Another alternative - you can take the shuttle to National Airport and get dropped off there and then take the Metro frin the airport.

Yes by crystal city mall

Subway within one block

I have a car. Don't use subway only in NYC. Call the hotel. If there is one they should know

Yes within 1 block the crystal city station

If memory serves... yes.