That implies you need a down payment. Having met an idiot that actually got a NINJA mortgage, I can tell you that's untrue.
And those don't exist anymore. All the GSE* backed mortgage lenders have really tightened up their minimum requirements. And no private equity lender or small to regional bank is will to do anything less then what the GSE's mandate.
*- Government Sponsored Entities: Fannie Mae, Freddie Mac, FHA, VA, etc.