On top of that, what if all of a sudden you need a new roof, or windows, or a sewer line, or the irrigation system freezes, leaks and floods the basement, or a fire guts the place and your insurance only covers some of the vacancy/rebuild costs, or a flood washes it away and you didn't have flood insurance, or your tenant stops paying and their estranged lover/stiffed drug dealer breaks in and destroys the place, or any one of a myriad possible bad things happens because you have an investment that hinges upon human behavior, and therefor needs constant baby sitting, and 5 years of your glorious $500/month is wiped out in one afternoon, and the bank takes the property?

They may be fine now, but in the summer the heat gets through the first layer of shingles and the second layer will eventually curl, causing flat pockets of water to form that will eventually leak down through and destroy the sheathing and the rafters/drywall underneath.

My primary residence neighborhood was 100% destroyed (FEMA designation).

However, most smart people will tell you NEVER allow a seller to stay after closing.Who cares what the seller wants... your very real risk is a holdover tenant who could destroy the place once he figures out he sold for $130k less than value.

I’m worried he’s going to keep destroying the unit, should I just wait out the two weeks or try to evict?

Bob I have had a issue with floating floors being placed under the cabinets before, if they get wet by any means it going to cause a lot of future problems. so its better in my option to cut around the cabinets especially considering there are water lines in the sink cabinet, so exposure to water at some point is likely. although if it is tile I always place it beneath cabinets and vanities so for the simplicity of changing them out should a tenants destroy them or the dog eats the cabinet/vanity which actually recently happen, the only issue your going run into when you cut around the cabinets is if you need to replace it for any reason the cabinets are never the exact some size so thats why I prefer to use tile in any areas that would have cabinetry. hope this hopes and best of luck!

Then returning and looking at my beautiful house destroyed.

He did not destroy the nuclear facility but incorporated it into one of my favorite amusement parks. 

I had an applicant who had their home destroyed by flood, with three small children.

These are young professionals who probably dropped 200k on an MIT education and you think they are suddenly going to destroy their credit and ability to rent in the area where all of the jobs in their related field are because they can't come up with rent?