What do we need to do to ensure we are not liable for damage that a buyer might uncover later, that we are currently not aware of?

Worst case is you have to pay them to get their crap out of your property I guess.But stop being so nice, or do you actually enjoy being taken advantage of?

Local is always a great place to start with the assumption you know the market, the challenges, advantages which can make it easier to uncover the best deal. 

All in the chance that you can uncover a deal to make some money.

If so, nice.  

Several thousand dollars in uncovered repairs is a cost of doing business that isn't going to have much of an affect in the long run (especially if you're saving it in lower premium for the higher deductible); whereas several HUNDRED thousand dollars in uncovered liability judgement is going to hurt, really bad.2) Once you grow to a certain level, you become more of a target for lawsuits.

We have a SFH that has been having a number of minor plumbing problems, and now we have uncovered that one of the major drain lines (cast iron) has deteriorated and will need to be repaired.

Then, if the inspection uncovers an unknown, you can back out or renegotiate.

It is so nice to have such a valuable asset as Bigger Pockets.

He's uses a formula uncovered 5 years ago while he attended an investor conference focused on identify "positive cash flow" properties.