Compare all the data.

How accurate is the data provided by AirDND in terms of price and occupancy or do you use a different website to analyze deals?

Once you have a shortlist, sign up for an account with each one and test them extensively to see how they function.

That being said there are also bad deals in any area, here included.I would run your numbers based on historical data from airbnb - pretty easy to check on airdna or even just going in the airbnb app and seeing not only what nightly rates look like for certain properties but what their occupancy is - from there you can estimate monthly revenue with a reasonable degree of accuracy and see if that lines up with your targeted returns.

9- Does he take real estate license test? 

I've got no issues with that.As for old data, literally today I got notice of a change in my credit report.

I can tell you the aluminum is far stronger than the gluelam data that I found:  the company presentation is reporting some strength value at 2400 psi while 6061-T6 is ~40,000 yield / ~45,000 ultimate. 

Market rate right now is $1200/mo and with renovations (quoted 60-75k in labor) it's hard to say because there aren't much data points, but I think I could fetch $1500-1600/mo.

Yardi's Advanced Budgeting and Forecasting module is wonderful and tends to be more accurate because it builds its forecast on all of your historical data. 

Perform due diligence, including soil tests, environmental assessments, and surveys to ensure the land is suitable for construction.