For instance, knowing the income limits, family size requirements, and the types of properties that qualify can help you make more strategic decisions.

You can't do this - you will need to provide some equity through a down payment to qualify for a DSCR Loan - need "skin in the game"

For conventional loan amounts on primary purchases with 5-10% down and even FHA eligibility, but I'd imagine the properties that qualify are more specific?

However, this is impacting what I can qualify for w/ the banks. 

There are many qualified Sponsors to consider.

@David C. when you get a loan the bank requires that you qualify and put the property into your own name, no matter what. 

Post the home on roomies.com, FB market place in your area and reach out to renters that are qualified. 

I'm in the midst of learning about DSCR and non qualifying mortgages.  

It not a loophole, it's part of the tax code.I would ask your CPA this question, people not qualified to answer this could give you wrong info.

I get more cash upfront, cashflow after my cash-out refi, and I net more on the sale because no realtors involved.Young family that the husband started a business 1yr ago so couldn't qualify for a mortgage, but they wanted to buy a home.