Western Maryland in the Deep Creek Lake area--a lot of mostly unoccupied in the Summer ski chalets or condos all around that area. These places are pretty nice, usually multi level with many bedrooms and walkout decks and full kitchens etc. I wouldn't necessarily go seasonal squatting in one, even tho they tend to be used more during ski season than warmer months. The owners do usually offer them for vacation rentals even in the off-season and you could have someone show up who legit rented the unit you're squatting in.
But if you find one that was independently owned and leased by a private owner, probably be pretty easy to work out a deal to lease it throughout the summer into the Fall, until ski season started. That would solve the problem of having to turn on utilities/internet etc in someone's name at a place VK bought and owned. It's all in the owner's name in the case of the vacation/ski condo rental and you pay them to cover everything.
And for what's a very rural area, out of town faces or a strange vehicle parked outside a vacation condo would not stand out, due to people vacationing in the area for winter skiing and even summer boating on the lake and hiking etc.