Your best bet is to ensure that there are no material modifications that would in any way harm or even moderately delay the ability to rent it out and qualify as a normal SFR (one lease, one family) or sell on the market to an owner-occupant

The comprehensive financial modeling does more harm than good.

Third hand knowledge from a neighbor that heard from a tenant that claims that they told the owner will not go very far in a hearing I would imagine.If the home is concrete slab I would highly doubt that a window leak would cause the foundation issue, if a post and beam maybe?

Cause of leak was determined to be the door gasket.

@Jason Cory what's the harm in OP asking twice?

—Today, the Commonwealth Court of Pennsylvania ruled that the borough of Pottstown’s ordinance allowing officials to search rental homes without a warrant based on probable cause is unconstitutional.

I expressed concern that doing so might cause the original mortgagee to be notified but I wasn't sure.

It's funny cause they have less of a reason to get to know the neighbors than a long term tenant but more time to develop friction than a short term guest. 

I’m curious how others think about it — what usually causes you to walk away from a deal that still pencils on paper? 

I think I could afford the mortgage especially cause a unit is already rented at a fair price.