The mortgage documentation problem is on my list of things to work on starting Q3 2017. I'd love to hear more about what's pissing you off -- may I email you?
Managed warehouse lines, etc.
The problem is the customer abuse ("needs list") that is a hallmark of underwriting. There has to be a better way to get all that information from the customer in the vanilla case.
I find this hard to believe considering the pains we were solving: now quite some time ago. Maybe they have changed.
Excessive burden on mortgage consumers is driven by many aspects.
At it's core is (was if what you say is true) the inability for backend systems to effectively aggregate and verify the necessary context to easily meet regulatory needs.
We were starting to aggregate such data allowing us to automatically verify and then fill out all forms necessary for the mortgage consumer.