Lodging

There are plenty of places to stay right in Leesburg, which is about 25-30 minutes from Sylvanside Farm in Purcellville; Leesburg is about halfway between Purcellville and Dulles airport, in Sterling.
If you prefer to stay closer to the airport, there are also many convenient options in Sterling, which is about 20 minutes from Leesburg (and about 45 minutes from the venue).
Please refer to the airport website (or Expedia, Hotels.com, etc.) for vehicle rental information.