Here are the year-end market statistics for the South Florida Real Estate market (Broward and Palm Beach Counties)As you can see...The number of listings is decreasingList Prices have leveled offAbsorption rate increasingDays on Market (a leading indicator of price point validity in my opinion)This data is for residential properties.

For Air BNB i would look into one of the data analytics companies like AIR DNA for example.

I met a few prospects at the house, chose one based upon their income and background check. 

At least the areas I looked at, did not have specific builders owned chunks of contiguous lots, where you can clearly see data trends.

My plan is actually to do a test run so I hope to be able to report back, but thought I would ask others as I haven't seen anyone (yet) that put an actual (tentative of course) offer on a postcard.My mailer list will be a combination of parcels that 1) have been more researched, so I feel comfortable putting a quote based on Market Value from Assessor lists, comps from recent sales, etc. and 2) those with less data available - these wont get a "quote" postcard but a more neutral message. 

I'm becoming aware of the Case-Shiller Index and the Eviction Lab data as a big picture source of information.

Which means sales data is not public information.

Do I need to open escrow on the land first to attain geographical data?

On a renovation project, some of the most important data points are;- Property type (e.g.

If you are not able to find market data then you could value as indicated above which is known as the residual method.