I am a realtor and would be glad to provide you with a listing of all rentals in the area along with their features and price. You can reach me at 703.618.6036 any time or by email at email@example.com or firstname.lastname@example.org.
You should be able to go to any Realtor - They would be able to generate a list from the MLS and email them directly to you. They would also be able to narrow it down to just houses / Townhouses that you would like.
You might consider trying Craigslist, or as francesca mentioned, a local real estate agency. Some of them have a property management division. Try to find out which ones do and you may find yourself with lots of options.