I'm curious to know if they've built in any clauses to mitigate a non-owner occupied investment.

The stage of cleaning up debt and raising credit can feel long and boring, but it’s necessary.

I'm new but being mentored by a broker who did hundreds if not thousands of BPOs through the crash (broker price opinion, sort of like a non-official appraisal for bank foreclosure and other purposes) and really knows the value of adjustments and when to draw the "not comparable" line.

As soon as one is late give them notice to non renew.

It's a non-starter for your Mexico place. 

Whatever that number is, ask for it in the form of non-refundable additional earnest money on the property in return for extending the contract.

If they skip out on two months rent, the last month's rent and deposit will cover it and your only loss is cleaning/damages.3.

And your group of tenants can remain under one lease, extended indefinitely, with participants cleanly substituting for one another.

Cash is king and as Rocky said, a large non refundable deposit might have helped.  

Any non sarcastic input is appreciated :)  attached is the Color I like.