At anytime the family could say let’s not pay out dividends any more, or let’s sink more money in to the building.

nearing $100k.there is a saying out there "things aren't as bad as everyone says it is and things aren't as good as everyone says it is." let that sink in. hang on and good luck, buddy.

In New Zealand a trashed house has a dozen garbage bags in the backyard, an unflushed toilet and dirty dishes in the sink :-).  

Deterioration, sinking, water?

I'll do valves and hoses under a sink, but when I wanted to convert a single sink vanity to a double, I called in a pro.

You can't really tell about the plumbing behind the walls, if you smell sewer gas ( hydrogen sulfide), it may mean a broken pipe or empty p-trap at sink or tub. 

Not just in typical moist areas like bathrooms--but in the corners of closets, under sinks, under a staircase and around garden unit windows and some walls.                                         

Things I think my realtor SHOULD have concerned himself with were brushed off and I am dealing with an enclosed porch that is sinking into the ground due to the same issue.

The first floor has a full bathroom, and the lower level only has a half bathroom (toilet and sink).

New fixtures on all sinks and showers. 5.