Hey,
I guess I would be ok with Alexandria, although I guess everyone's dog's need to be ok with extreme city (Alexandria is essentially Washington, D.C) - using the bathroom on concrete, cars, lights, etc. Parking can be difficult there (primarily people use the subway to get around, which is off limits to furries, except for service dogs), and I guess everyone's dogs would need to be extremely dog social if we are to hang out primarily in dog parks. We also need to check hotels to make certain there are no regulations regarding dog sizes/breeds before we all arrive with a bunch of wolfish dogs
. That can be a very common problem traveling with dogs. Saturday and Sunday sound good.
Marcy