NEVER A DAY LATE.Their servicer Shellpoint now claims I owe THOUSANDS more than I do. 

Public record - County Clerk online has records in the hundreds of thousands in most states!

I thought to myself, no big deal it's only a few thousand more to get my plumber in there to replace it, but once my once my contractor got in to fix the floors (which were buckling) he saw a cyclone of termites.

Just by googling 'buy a house in Nicaragua' I now found the cheapest SFH going for $44k on one of the brokers' websites, a lot of them in the hundreds of thousands USD. 

That would several thousand dollars.

Also, if I place bad tenants frequently, I can count on being fired, so what sense does that make to ruin my reputation and lose other business for half or 1 months rent commission?

That is, unless investors are now willing to pay more than the 1% rule used to dictate.I know it will cost some time and money to get them vacant and fixed up, but the alternative seems to be to leave 10s of thousands of dollars on the table.

Like with any RE investment a thousand things could go wrong.

@Michelle Dong hopefully you haven't gone and spent thousands on a "guru" program for S8!

Maintenance can completely ruin your cashflow and whatever you thought the deal would return.