Tenants expressed serious concern that they are hearing little girls voices and finding items moved or things out of place.

My favorite expression in cooking:  first you get the pan hot, then you put the meat in. 

This is one reason I don't respond anymore to those who haven't expressed a shred of appreciation to those who took the time to respond, before I might add to their thread, even if I know it would help them.From @Mindy Jensen "... the ratio of votes to posts is a good way to gauge a person's knowledge and/or helpfulness."

- Are they on time with delivery of tax documents?  

That's because he stayed at a Holiday Inn Express last night!

My agent, also an investor with say around 100 doors, expressed skepticism that sellers will be willing or able to break out these kind of details when selling a small segment of their portfolio, and cited the expenses of a CPA keeping track of 100 LLC's as a deterrent to keeping properties separate.I had assumed that it is a relatively easy matter to keep transactions for separate properties separate.

I currently freelance as a delivery driver in my free time in the Cincinnati and Dayton area.

For a well failure we were able to tie in to a neighbors supply with a hose,  bulk water delivery is also possible in some areas but your problem being the piping neither of those options may be a solution.

As @Jon Holdman mentioned, it is not unusual for an owner to not have any specifics about the current state of the property if its a rental, (although providing you with a legal document exempting them from disclosure is a harsh way to express it).

They express verbal interest and have gone back 3 times.