One simple example, if you take two rooms and rent another 4 rooms, you will have two cars and each of the other tenants will have at least 4 other cars making you house to accomodate 6 cars.

Then it's simple, build the home, find crews to do the work (you should already have them basically from the prior step), excavation, concrete, sealing, framing, roof/gutters/siding, windows, insulation drywall, plumbing, HVAC, electrical, finishes, etc. basically in that order.

Its pretty simple. 

I create a simple spreadsheet and compare my CoC return and Return on Equity (ROE).

It's completely legal, very simple but powerful.

Do it yourself with TurboTax (or similar software)If your rental is pretty simple (one property, basic income & expenses), you can learn the basics and still save money.

But it literally takes 5 minutes per month per property with something as simple as quicken. 10 properties don’t take me an hour a month.

And hands down the #1 violators of tenants rights (I mean legit cringe stuff) are those large communities, not investors like those who make up the majority of BP. 

And the simple act of owning 3-4 SF rather than 1 MF spreads your risk out as well.But before I get flamed for being the stodgy too conservative guy who ignores scale let me say that we have many many clients who will start out as SF investors. 

And, yes, in a lawsuit a judge might see that you are not treating your LLCs like a corporation and decide you do not deserve the protection that corporations provide.Sounds like you are being sold a lot of entities and nobody is telling you how to actually run them.I recommend this simple book from John Hyre on entities and asset protection to help.