My husband has co-signed on a series of St Loans, and now with being upside down on our mtg, and all deferring options have been exhausted, with SMAE, could we file for bk (the loans are our daughters, who cannot afford her half,we divided the mo payment) but now were looking at 70,000. and even with refi them she'll never be able to afford them., could we as co-signers file over her? She went bk 5 years\ago.?