I am glad it did not cause a fire. 

This will cause your CF to go down too. 

Should I  be proactive and notify them of trespassing or save all videos/communications and wait to see if they cause any issues in the future?

We just have old oak hardwood floors, nothing special about them......could the undulating have been caused by adult beverages?

Had to go to court YES court as the tree branch was laying on the neighbors fence and it cause her, ready for this, PTSD,,,,,,,,, Yes when the judge told her she lost, she went crazy,, or should I say crazier LOLOK another, the tiny branch from a front bush was taping against the window , she asked us to come over, REALLY !!!! 

If you max it out your debt utilization rate shoots up to 100% on that line of credit which can cause the credit agencies to lower your score quite substantially.

The property is in Nelson, BC where housing prices have rocketed in the last 5 years but being a small remote town causes construction to be even more expensive.

I'd come up with all your own assumptions to generate a purchase price. get it under contract, then confirm (via Ptax statements as noted below), your assumptions, if something is off, thats reason to kill the deal.This shouldn't cause so much headache for you, just fire off the NOI and see what happens.

Water getting under the foundation is the primary root cause in most foundation issues.

@Amanda Thompson its a lease violation and is cause to end the lease.