One is to hire someone who can scrape that data from your county records.

Here there,Looking to venture into RES business and am I would love to explore Miami market.

Builders are currently building apartments - but I can only imagine their expenses have doubled, at least= high rents.WSJ yesterday had an article detailing people's willingness to increase their commute times substantially as the hybrid work model takes shape.For Home Buyers, Length of Commute Drops in Importance, New Data Shows - WSJ

Without seeing the deeds and appraisor's data sheet it's hard to say whether you are purchasing a % of a larger building or whether you are purchasing 100% of four condo units inside a building. 

And it was explained how, if I were very computer savvy, I could probably build my own CRM and where to look for all of the data.  

This information should be current and include historical data.

I was definitely thinking it’s not the best location for STRs, but I did pull some Airbnb data and noticed some successful ones in the area, but not many.

It's worth studying data to make sure you're using real numbers and trends to make that decision. 

I've only been using for Onyx hunting, but it gathers the you the data you need to reach the owner in most cases.

I would agree with you that 1200 is high given the data you shared.