Zillow.com is 80% of the market, you can list with byowner.com, Their MLS package will get your listing syndicated to all the other sites, redfin, trulia, apartments.com, homes.com, realtor.com. 

In that configuration there is some key elements, namely access, utilities and layout.  

Below is the package I proposed to them as they want to be completely hands off when it is furnished.

Just realize that it requires many specific conditions to be met, and has much greater risk elements that you need to be prepared to potentially go wrong.

To pick just one of those items and call it "investing" is not understanding the element of time/energy coefficient.

The 5 house package , I will show 5 houses within a 30 mile radius ( extrs $2 a mile past that ) submit up to 3 contracts .

It has all the elements to be great, but it needs photos to do that.

They advertise as Lender but are selling another mentor program/software package (which seems to be Prop Stream with their branding on top).

A comprehensive lease agreement addresses all elements of tenancy, and clear home rules are required.

If you are selling to the group that borrows money, the apprasial is a key element that you can't just guess at.