Hi! If you don't mind driving for an hour, I am currently boarding at Cherokee Winds in Manassas and she offers Hunter lessons. A VERY laid back farm. I love it there. Home - Cherokee Winds Farm
If Manassas is too far for you (which can be quite a drive during afternoon rush hour), Frying Fan Park in Herndon offers lessons and I bet you can work out a deal with them. They have a stellar cross country course.