Investment in property through loans

If you buy a residential property for investment purposes from one of the banks(not Albaraka) say FNB. I buy it with all the money borrowed from the bank. Then I rent it out and the money from the rent pays for the loan and if there is a shortfall, I will accommodate it. However I have no intention of ever selling the property. In the 3rd year, I will start showing profits. I will keep the property for years.
I will take out loans with the major banks. I will re-finance the loan and buy more properties. This will be my source of income. These accounts are opened via a property trust account. This has been happening with a lot of clients.
What is the ruling regarding this kind of investment?