A company's outside counsel, Attorney, is asked to prepare a standard loan-eligibility opinion for the company's lender. While reviewing the company's records for the opinion, Attorney discovers a covenant default on an unrelated existing loan that the lender does not know about and that would likely cause the lender to reject or sharply reprice the new facility. Attorney reasonably believed at the outset that preparing the opinion was compatible with the representation. What must Attorney do before sending the opinion to the lender?