Sorry for the long intro and infinite questions.

REI is the only investment where you really don't have to spend any of your money...just use it an infinite number of times, and that is the main reason it trumps the stock market exponentially.  

The "off-the-shelf" quoted price may be a full month's rent but if someone approached me with a group of higher end units that needed to be filled there's almost always room to reduce the fee.

We were thinking of just buying an off the shelf system that has night vision & is motion activated from Costco since we already have a monitored system through Livewatch.

If you put nothing down and made 10K that return IS infinite on YOUR investment, which is $0.

Well, technically any income with no money down equates to infinite returns.

I have found repeatedly that my "1% deals" have been far more profitable and infinitely fewer headaches than my "2% deals" ...

Right now homes are flying off the shelf in the suburbs like yours, you shouldn't have much of a problem selling.The fact that you have many showings tells me that buyers are interested but turned off either by layout, furnishings, or size.

Lol, I'm all over place, but the possibilities seem infinite to me.

I have done BRRR on 2 properties and was able to get all cash out on both, when doing BRRR the CoC is infinite.