How accurate do you think the Airdna tool is?

It won't be 100% accurate, but it will be close enough.

Generalized statements about Chicago will rarely be accurate or useful.Pointing out that you bought a property cheap in no way is evidence for a claim about "Chicago" in general.Chicago has plenty going for it.

Has anyone found a title and escrow company that closes quickly and accurately, that's familiar with the needs of REIs? 

Assuming you are being accurate and left no pertinent details out of your account, the fact that they kept your money, did not do the work and, in essence, placed you in a position of getting a judgment against you might rise to the level of malpractice something they could be sanctioned for and for which they may have insurance coverage for. 

Unless you think an algorithm is smarter and more accurate than you?

It won't be 100% accurate, but it will be close enough.

I have various other requirements, but the credit score alone seems to fairly accurately correspond to the quality of tenant I will receive.

This has been surprisingly accurate and generated me a couple leads .

Wondering if my numbers are accurate and if this is a deal worth taking. 3/2 1210sf in a C-class nbhd but in hot market that is rapidly appreciating.