When he checked on the house it was literally destroyed it cost him about $25,000 to do all the repairs.

Ant animal, dog or cat, with claws, teeth and ever needs to go to the bathroom will damage, possibly destroy your property. 

Pets can destroy your property and if you smelled the animals just walking in, imagine what it will take to get that smell out of the house after a year and before you can lease it again (to someone without pets) or sell it.   

Also, be sure to take pictures after storm to add to damage claim.In investing things happen I was in the middle of a flip, with the wood frame put up 2 days before a storm and a heavy tree branch fell and destroy back of home.

They could also destroy your home during their pre-paid year, and then file bankruptcy when you try to collect for damages.So, between the bankruptcy-waiting-to-happen (if they haven't filed yet) and the duty to mitigate damages, I don't think you should take this tenant. 

That dog destroyed the fence on a regular basis, and also wreaked havoc on the siding of the house. 

So, after the eviction, I plan on taking them to court for all the back rent, and anything they have destroyed.  

The children often would make it a game of purposely destroying the beautiful streetlamps and the sidewalks and the yards.

I can at least trust her to not destroy the place like previous tenants I've had.

If you try and push it too far to maximize your savings and things start to turn for the worse, you'll put yourself in a bad situation that could destroy all your savings.