In my area, the inspectors are massively overloaded and often skip through a nice house quickly while telling me the last house they were in set them back 2 hours because there were so many violations.

I'd venture to guess your tenant is a criminal or drug addict of some sort.There's some truth in your thought but he's actually a really nice hard working young man. 

They're charging second mortgage rates on a first mortgage, nice investment if you can get it.Getting the former owner to sign a second mortgage for the amount you paid at tax sale works, if he pays, and if he signs. 

It may sound nice to pay a 6% management fee but the extra fees can add up to be more than the other company that charges 10% with no additional fees.

People also love the back deck with the string lights and a nice seating area. 

@Andrey ShostakA tax calculator would be nice.

People will continue moving to the area because it’s a nice place to live.

It's a nice lesson in behavioral finance.

Once you know the market, it's a nice gig. 

It could be a nice opportunity however I would be certain they will want you to make up the difference between $250,000 and whatever is left on the mortgage which btw in my opinion should be done with lender's knowledge and approval.