Yeah I bet.He basically used wood shims or the planks from pallets to "drywall" his entire house:And as a soffit, which he conveniently put in outlets that tied to the interior of the house.

One house returned SATURATED with dog urine (skunk level odor-no exageration) sub floor buckled and black mold beneath carpets. 

I presume somewhere beneath the layers of paint is lead paint.  

There is a gutter missing, needs new screens on the windows and a new post outside and like I mentioned some mildew on the ceiling in the master bathroom and a leak spot on the first floor ceiling beneath the master bathroom.I dont think I will continue with this property.

They'll give you a report showing what it needs, whether piers need to be added and how many, whether existing piers need to be shimmed up, and so on.It may be there's no real problem....a certain amount of foundation settling is OK.

In your case each half actually owns the land beneath it, they just have a common wall located on a lot line that has a 0' setback (you share the wall on the property line). 

The next tenant will be taking a shower beneath your new shower replacement.  

I think you can assume there is mold, and possibly rotting of the structure beneath the bathroom.

Its fun, but I'm likely moving away from it as I'm a single dad, and very committed to the idea of living beneath my means in an effort to live off of the income generated from my investments, which will allow me more time to spend with my kiddos.  

Alternatively, perhaps I'm missing something beneath the surface on this renovation that increases its value vs recently renovated comps - i.e. the new electrical and plumbing; or the fact that it is a "full renovation".