As Randy mentioned, you will be adding costs and lack of knowledge in the transition.
Another potential cost. If the language in the other country is not English, in most cases the bank will need to get a certified translation of all documents and other pertinent opinions to satisfy bank regulators, and at the bank's expense. Examiners and credit review Ned to be able to fully understand and document the transaction.
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Integrity. With it, nothing else matters. Without it, nothing else matters.