I know that's the case around here, additionally rental demand for SFDs are higher than multis which can result in better tenant pools.

Giving everyone pools, dog parks, stainless appliances, and granite will only work to a certain extent. 

As far as comps go, you can pool your list of properties and have your VA(s) compile data for you, and transfer it into a form that you can easily analyze.

Create an LLC or some kind of legal entity where I can pool together funds from friends and family to make investment purchases.  

From what I have seen while looking at sample tapes, FCI exchange/other websites, and other comments; is that performing notes cannot be bought with that much of a discount (but I haven't seen what local banks/credit unions provide in their pools/tapes).

The fee pays for common area maintenance - parking lot, pool, tennis courts and  management company fees.  

The HOA like I said is a little bit high for its location but after looking at the amenities offered it kind of makes sense tennis courts, lap pool, club room, etc..

Now you'll have one big pool of Roth IRA money.

The key is where you are investing, and your tenant pool, and how well you screen. 

Their position is that their pool of buyers is small.