How is your experience so far?

Let us say you want to have a Section 8 rental, then first try to define what you can afford and where is that money will come from.

I tell people this is the worst time to do a subdivision.  

OPJust borrow the money in the US and use it in Belize.

I was wondering if anyone has a suggestion as to how to go about it.

How else would you know which one is the criminal?

Seeing how others structure their numbers and track growth can be super helpful.

We were tired of renting and didn't know what we were doing at the time.

I have always used Zillow/Redfin to find property and then use other tools to verify and evaluate details about them (like finding out how much rent you can get,  confirming property taxes on the county website, HOA fees, etc.). 

Otherwise, you could network with a local Realtor to your area and see how many duplexes sell per year within your acceptable driving radius.