To Sum it up, its a good idea if you can exceed the cost of capital (higher rate than your cost of debt) with what you earn on your heloc/debt you pull out and invest.The question is how much gains above is enough to substantiate the risk of your variable interest rate, well thats up to your personal investing criteria.

The mortgage payment is $1,000 on each house, so you earn $500 per house or $2,000 monthly.

I haven't seen any info on people earning any money on the actual affiliate/commission side of Minoan.

CAn some one shed me some lights on how foreigner can invest in Duabi, which firms that I can go through, who are reliable and keep my investment safe and able to get some decent returns, and what are the tax consequences for earning potential from outside the country?

If you have no idea what is going on with this capital call, then the bias should be "no" until you understand what is going on and believe that is the best possible use of your hard earned cash. 

As the cash flow is obviously much worse than you can earn in the bank with a basic CD.

Can you invest that money that would be used to pay it off in places that earn more than 7%? 

$77,000 earnings on a $190,000 investment is unheard of in real estate, but quite normal for a well running business.New RE investors are always after cash flow and CoC return.

I have no idea why folks spend a ton of hard earned money on these "guru"  classes.

I would hate to pass on it and settle for just earning a commission by selling it.