From what I saw, AFS didn’t care about the DTI as much as the depth of credit. I’m self employed, stated my income, they didn’t care about cash in my bank accounts, just seasoned highest credit limit on my credit report for a car or a mortgage to show payment history.
I had high credit limit on Chase for a new Range Rover, but wasn’t acceptable because it was only 60 days seasoned before it was closed. They needed 12 months of history to use this trade line
Actually if you had put that first, that would explain a lot. After people started defaulting on loans they would definitely look askance at Self employed folks. Cash in a bank is just that, cash, it doesn’t pay their bills if you default.