Also heard same on how they derive rent.

The derivative of creating this passive income is creating an ideal life for my family traveling with my wife and giving back to the community/ helping people in need .

Then have an attorney form the LLC and draft an operating agreement if you intend to use an LLC (sole member would have to be the SDIRA with you as the manager deriving no income personally).

Explain your formulasNot my formulas, I'm not nearly clever enough to derive them myself, but I'd be happy to point you to my sources Joe. 

I will apply my free nights and weekends on extra curriculum activities (i.e. real estate and its derivatives).

Laws aren't made to give investors a road block in making money, they are made to protect owners rights, equity, use of their property, quiet enjoyment and the fruits of the land (fruits of the land meaning profits derived from their ownership).

It is not "green" and, in my opinion, it is a waste of money.I would never buy a new car...period because for me I would not derive more net value over the cost of such an asset. 

The capital required to attain a certain surplus cash flow is a function of:1) Property profitability (net cap rate after expenses)2) Leverage (debt percentage)3) Cost of capital (principal+interest percent of purchase price).I derive the following formula.

For the lowly landlord is to be looked down upon and reviled for daring to derive income in exchange for providing safe shelter.

. +1,150 Rent-551.59 Mortgage-153.92 RE tax-88 Insurance-103.5 Prop Mgmt= $252.99 Monthly Cash FlowAll these figures came directly from your site with the exception of the mortgage payment amount, that was derived from the assumptions presented on your site.