If you are just downloading data room info from brokerage sites and plugging into a model, you are refining your skills on the "act", which is certainly necessary and helps make the process faster.  

Please consult your trusted professional in getting accurate information as it relates to the estate.This site has 1031 intermediaries that have far more expertise than I have about 1031 but 1) you cannot 1031 a pure OO property.  

The land assessment value is on the tax assessor's site in every county, but that doesn't hold a ton of relevance in my opinion.

He used https://www.dealmachine.com/ interesting we are researching different sites right now and are testing propertyradar.

Like "Biggest single family propetry management mistakes ever" etcGeez, this site it kind of clunky.

Many of the OTAs and lead gen sites, like Furnished Finder, are pushing credit card payments. 99.9% of the time I get a message from FF saying 'your tenant would prefer to pay by credit card so activate Stripe now!' 

This site has been instrumental in getting me from 0 properties to where I am today. 

But using lockbox at each site could help.

is there a tool on this site? 

They list properties on their own site, plus Airbnb, VRBO, Booking.com.