Well, in order to determine whether or not you decide to fund a loan, I am assuming you or the loan officer performs some kind of due diligence. For example, reviewing a credit report, visiting the site, etc. In reviewing all of the applicable documentation you can assign a rating to loan. In regards to who's responsibility it is, that depends on your organization's structure. Do you have a lending compliance officer or a BSA officer? I would ask management that very same question because what I can you is that someone should be able to answer your questions before a examiner asks them.
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"100 victories in 100 battles isnt the most skillful. Subduing the other's military w/o battle is the most skillful." Sun-Tzu