None of the paperwork we've received has indicated that we'll need to do anything and when DH called them yesterday the automated message said that mortgagees need not do anything.
We did have them up until last month- we paid off our mortgage with them. . . By refiing with another bank We did receive a letter a few months ago saying "pay your mortgage still, nothi has changed". That's all I can offer.
Washington Mutual went bankrupt when they held our mortgage - there was no service interruption, we made one or two more payments as usual, I think, then Chase bought them out and serviced our loan.