You need to take into account appreciation (both forced and natural), principal paydown, and the tax benefit of depreciation expense to understand your total return.

You aren't taking into account principal paydown and appreciation.

I'm not accusing BOA of creating a predatory program under the guise of racial reparation, but many people could end up paying a ton of interest without much lowering their principal and then be left upside down in their mortgage should they wish to sell.

They are designed to make sure that the rental income covers the cost of the property and debt (principal and interest). 

Additionally, the study should contain 13 principal elements.Those 13 elements are:Preparation by an individual with expertise and experience.While there are no specific qualifications for the cost study preparer, they should be knowledgeable of both the tax laws for property classifications and the construction process.

That is a great product because it is interest only product, therefore your payment would not be that high and also the principal balance is not due in a long period of time.

The rate is adjustable but you can tap into it multiple times (up to your credit amount), especially if you end up paying down the principal early on.

Seller finance from them with nothing down all going to principal at a price they like 

They will ask for a copy of the terms and conditions and add in principal and interest based off of the full payment. 

Im just trying to gauge some trends and understand more as each of these principals are talked about.