Sounds like a lot of work, water damage, and possibly replacing the floors, all the insulation, fixing plumbing, possibly electrical (which if there's a leak could be a shock hazard so be careful) Termites?

But my tenants are pipefitters (they can change a hot water tank), boilermakers (can change a hot water tank with their eyes closed), electricians (can replace a fuse box with a breaker box), electrical crews (can wire a 2 story house for cable tv), scaffold builders (can trim a tree with a pole saw), welders (can replace the factory exhaust with a custom stainless steel exhaust on a riding mower), construction foreman (can add a bathroom counter and vanity).

Each one has a separate electrical connection. 

There is no water or electric to deal with .  

We got what we needed and have roofing, plumbing, electric, and HVAC scheduled!

The house will need all new electrical, plumbing, HVAC, trim/casingsC.

They may make you tear open walls to show the plumbing and electrical is up to code but at least it is possible.3.

I think that they are the scammers , I was literally gone for 2 days , the next door neighbor saw them but didn't saw anything they did tell me it was 4am tho , so I know they are the scammers, I have a permit for some electrical work so other than cutting the power I'm a loss , I think I'm just going to show up with the police at 7am and cut the power and go from there

Once it gets wet, it solidifies and we can't get it out (I've even gone Rambo and used an electric drill with auger bit and it took 30 minutes to get it out!).

Elevator, Parking, handi cap access and electrical transformer had a big impact on the layout.