Answer:
My thought are that if your Automated Valuation Model/Investment Valuation Model (AVM/IVM) or basic evaluation was originally accepted after review and you do get an actual appraisal that comes back with a material difference in valuation, that then just tells the bank that the Automated Valuation Model/Investment Valuation Model (AVM/IVM) or basic evaluation process is flawed and unreliable.
Are you not doing independent second checks on your values as part of your normal due diligence process already?
You cannot allow the borrower to influence your appraisal/evaluation process.