If we went the vacation rental route, something near us would have its appeal (we live a few blocks from the beach in a nice little Florida beach community) because we could manage it ourselves much easier.  

The stress dynamics of supporting a 2-ton+ vehicle call for special construction if not placed directly on a properly prepared cement or concrete slab.Advice:  address the foundation issues and move on.

@Geordy Rostad she was just lucky it wasnt a block house. 

In regard to items blocking defects (furniture hiding a hole in the wall for instance). 

I also grew up pretty poor in a town run by a major gang (shout out Fresno, California), so I have a strong functioning understanding of "rough" sides of town -- I know when a street is run by a gang, or when it's just a bunch of poor but wholesome families trying to get through their day, and how that can change from block to block.

There was vinyl asbestos tile that was loosely bonded to the concrete, which came up easily in one piece.

It’s 2 blocks from city hall and the police station. 

If that is not the description, then you probably have a D area (where there's a boarded up building in every block or every other block). 

Still, do not.The last item that is concerning is the property does not sit fully on a concrete foundation.

The area is about 2 blocks from the incoming Worcester Red Sox stadium coming in.