Is that Airbnb analyst tool/subscription worth looking at? 

Are any of these website offering a subscription and annual fees good for the use of finding properties?

It's a local subscription site that allows you to search for lists of different distresses, search for comps, skip trace for owners phone numbers, ect.

Make sure as an investor you understand what the horizon of the investment is and if the hold time is projected or that has been outlined specifically in the subscription documents.In my experience an operator is not going to "lock" themselves into a  time period to sell as it would open up significant risk if the market were to correct in that timeline. 

I believe they have a subscription system however from what I recall it's a little bit expensive and is not very user friendly.You can pull the public data from the various websites and then go and extrapolate everything, but unless you've got a pretty good programmer who can build out some engines to go scrape everything you will end up doing a lot of that mining manually.

It is the membership, mls subscription, lockbox.

Per VRBO terms of use:We allow one listing subscription per property for each account across all of our global sites.I guess you could have the same property listed on a different account?

Firms that normally provide round the clock service throughout the year like the monthly subscription model.Other firms may charge based on the complexity of the return or based on the time they put into the work.

Census Bureau.http://www.fox4news.com/news/census-report-dfw-metroplex-is-the-fastest-growing-in-the-usI wasn't able to read your story as the link requires a subscription. 

If you'd be interested on the AirDNA data for it, I have a subscription covering Galveston and would be happy to share it with you.