You find a property at an extreme discount and you find a buyer who is ready, willing, and able to buy that property at a slightly less of a discount that you bought it at.

As I had decided to shift my business model specifically towards potential Sub2 deals, I determined that refining these negotiating techniques would be extremely beneficial.

Indoor is much easier to control for pests, more efficient water usage (on the west coast, this is a HUGE deal because if you can have permits to do business, but if the state says you don't get any water, then you're done), higher quality product, etc.My biggest concern would be that large funds (hedge funds, pharma companies, etc.) are not involved in the industry yet because of the political climate around it. 

If you want to be in the rental income business you need to be extremely careful analyzing your expenses.As @James Syed stated your expense ratio for MultiFamily properties will be between 40 - 60% on average on a well maintained property.  

In one example provided by KBRA, if it was determined that the purchase option attached to a property violated consumer protection laws, tenants would then stop making rental payments, which could cause significant shortages in the funds available to the note holder to make payments to the servicer.And if that happens, the funds that ultimately flow to the bondholder could dry up as well.KBRA does caution that rent-to-own and lease to own securitizations are in their extreme infancy, and said that it expects to see “significant diligence and disclosure” surrounding the deals’ inherent risks.

As for FHA, it is a little more stringent towards safety related issues and you must also pass something called self sufficiency (75% of the rents must cover the PITI payment) to be able to satisfy the lender to give you the loan.BUT If you can get properties to pass these criteria (most certainly can be done), it is an extremely lucrative and low cost way to get into your first property.

Extremely user friendly, great customer support and VERY inexpensive (in comparison to having a custom site designed/hosted)

Right now contractors are extremely busy. 

Extremely competitive tho!

Well, maybe they ALL don't know each other but enough do so that reputations (good OR bad) get developed extremely quickly.