Mainly cashflow to be honest.

The main issue I've come across is that everything in this price range would be cash flow negative.

The people I know are mainly via Facebook and not close connections.

The 3 main banks here are BPPR, Oriental & First Bank.  

Being on a main road that has bus stops is great too as you're property can still run well without a great parking situation.

In our experience as a property management company, we allow owners to use home warranties, but they are required to coordinate directly with the warranty company themselves.The main issue we’ve seen is that home warranties can significantly delay even simple repairs.

I have a tenant in Maine who refused to leave after her lease expired, and multiple notices were given saying she needed to leave after it expired. 

We use Quickbooks Online for our main accounting software.  

The bottom floor is approved for commercial business and has the main vault, some marble flooring, and a back room office and restroom.

I have not seen any "main stream" versions of this just back country engineering but it's a solid concept and works well.