They allow you to provide them with custom field criteria (i.e absentee owners, 50%+ equity, owned for 5 years +, 2-4 units) then charge you a small price per contact.

I am taking pictures of the construction projects.

(I don't have any move in check list or pictures, just pics of how they left it and proof of smoking.)Or do I just list that the security deposit went to the unpaid rent and let them figure out the credit hit down the road?

Similarly, I suspect Amazon wanting to enter the mortgage business isn't about the potential profits, rather they want to capture the vast amounts of data that a loan application produces, which will ultimately strengthen their understanding of their customers and lead to an increase in overall profitability.

Notice my outfit on the profile picture.

I put together a custom google map that labels and grades the individual neighborhoods in the area (based off my own personal research and visit).

. - After getting my bachelor's degree in finance, I worked as a commercial loan officer for 2 years, I picked up a lot of knowledge from customers. 

In some markets it will make the home easier to sell without question and I have customers who added systems for that reason. 

I challenge you to try and find something positive out of the dozens of his customers that have shared their horror stories. 

Hopefully this paints a picture of who I/we am/are.