As a student of history and electoral politics, my hypothesis was a flat no, and the research did verify at least most of my assumptions.However, I could have written a book about this topic, and I really don't think I can answer the question succinctly enough in 2,500 words.

Trust but verify. 

Their generic landing page verifies the details of their property and notifies me when someone snaps the code.

Don't believe what anyone tells you besides your insurance agent/broker and even then verify the info they're telling you, don't go off of the owner's previous insurance numbers.Also, be careful that in-place rents aren't already at market or above market slightly.

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

It's not really true loyalty program it's actually more a way to verify their underwriting and get more and more comfortable with you as a client/customer.  

Then verify your findings by contacting property managers, talking to other investors in your area, etc.

Verifying last 2 years of rental history very important!

Going off of what the others said about AD Mortgage, this is what I found (note: I do not know anything about AD Mortgage beyond what I found in these links as I do not have experience with them):Here is the BBB link that shows they are accredited:https://www.bbb.org/us/fl/hollywood/profile/mortgage-broker/...Here is the NMLS number that verifies they are registered:https://www.nmlsconsumeraccess.org/Home.aspx/SubSearch?

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?