Hello, it is really time consuming for me to analyze each property by manually entering its data to calculate the return.

How would I determine which is best for me?

for me, the ones that cashflow the most are the ones that I bought with 3% long term debt, they were new (low maintenance) and they are in high appreciating areas(just a bonus but does not impact cashflow).

As far as I know, your assumptions about the tax implications are correct for non residents, it was one of the main factors that stopped the idea of investing in Spain for me.

Just not for me. 

Also, I'm looking to form a power team in each of the states mentioned.

for me  a handful since early 80s  now in those days I was ONLY buying land that had owner contracts on them. 

For me it's family, friends, and the food.

The platform's main focus is processing mortgage documents in their raw form to extract specific financing terms for all properties in the city.

It has been life changing for me!