I am in that area and about a few minutes south of Quantico.
THere are a lot of different styles and schools. It would depend on how far you want to travel. I can tell you if you are at Quantico going to DC and/or MD is a drive that sucks ballz. So, it will depend on how much u want to commute and where you end up living.
Here is a school I had checked out a few years ago and they aren't that far from Quantico. http://www.dojolocator.com/Niagara-Shobukan-Marshall-Arts/