What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

Verifying last 2 years of rental history very important!

Some high and lowlights:- I had one tenant that brought German cockroaches in and then blamed it on me- Same tenant asking if her daughter can visit but failed to mention it was 5 more very noisy people- another tenant having constant loud arguments with his gf- tenant saved some of my stuff when the house flooded due to a pipe burst and another time during a monster rain storm.

Verifying last 2 years of rental history very important!

If you have a 2 year work history, and go get a W2 job tomorrow, we could use your base pay right away (as long as it is "guaranteed hours" or considered "full time". 

.- Can't see a Senior-Only complex allowing Short-Term-Rentals (STR).If so, SELL.2) What is the history of Association Fee increases and how well capitalized is the Association for future repairs?

Verifying last 2 years of rental history very important!

@Stefano Vrolijk it all depends on your credit history, whether you have an SSN/ ITIN and how much you can put down.

To do that, to completely re-zone and re-plat the entire area would require, if my history is correct, the largest exercise of eminent domain in US history. 

The area is rich in history and culture, and with ongoing investment and development in the neighborhood.