Unless you are on the loan they are prevented by the FCRA to discuss the property with you.

Not sure about preventing them.

How would you prevent your seller from seeing how much you make off this deal?

Then just putting passage levers on them for entry to prevent them from locking themselves out. 

Interestingly, he had not even paid his water bill since moving in three months prior, so in essence it turned out to be "our water" because we had to pay the bill to prevent a lien on the property.

Did not effect my bottom line on that property but did prevent my ability to do more flips. 

The low inventory and relatively strong economy has prevented a bubble. 

That will prevent the rafters from sagging.

They're not just supposed to be arbitrary and prevent you from doing something because they want to.

I think it would help prevent terrible contractors from taking other investors for a ride.