My mortgage is with WF. I just hope they hold it together long enough for it to be paid off, just for the paperwork hassle that them going belly-up would cause on that front. I just have a few years to go.
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You would not have anything to worry about. I was 27 years in the mortgage business. All that would happen if Wells went under is that their portfolio would get sold to someone else and you would send your check to a different address.