Best thing, be sure of what you are doing.
Form a task force - it's not your job to be compliant, it is everyone's. See https://www.bankersonline.com/penalty/penalty-type/fair-lendingcra
- (these are CRA/fair lending penalties, but guess where they git the information from?) Come up with polcies, procedures, validation, and common understandings of terms and documents where the figures come from.
If you are unsure of where to go, get a consultant in to help start the process. (Usually management will listen much better to a consultant, even if they say the identical thing as the employee.) Make sure the LO's feel the pain - have them start collecting/filling in the missing links. Some cases, it is input into the system for underwriting purposes, and you may not asked the right persons..