If he hits something collapsed or too hard to clean out than you don't buy it.

the link: https://www.biggerpockets.com/renewsblog/rents-collapse-across-US/?

Reason being, the roof started leaking and collapsed in the beginning of 2016.

The roof is about to collapse which needs to replace immediately.

Anyone who was around during the last collapse can tell you that this is a dangerous game to play.

But on BP, there were topics back 9 or so years ago about LOC and HELOC freezes and, in general, the collapse of access to capital.

Spot The Outlier - Seattle Home Prices Go Vertical As Laundered Chinese Money Flows InAs The Seattle Times points out today, Seattle's sudden surge in home prices is the market's most rapid ascent since just before the housing bubble collapsed a decade ago. 

Never hurts to arrange a walk through though, unless of course the roof collapses.

I once saw a rental apartment building that apparently had a clogged/collapsed sewer connection to the street, so someone went into the basement, took a sledgehammer to the cast iron sewer line and let the raw sewage drain into the sump pump, which was then ejected onto the lawn.

Populations are collapsing in many countries, and the average age is rising with yourh unemployment at Depression-era levels for youth in places like Greece and Spain.If buying in a popular vacation destination you should be good.