If they have sufficent equity within their property ( How long have they lived there is normally a good indicator ) they do have options. Depending on which lender they are with ( is it a high street lender or a sub prime one? ) will give an indication of they ae paying a normal interest rate or an inflated one.
If they have other debts ( most likely in Repo cases ) they will need to ascertain if they are secured or unsecured debts upon the house ( ie Credit card debts are normally unsecured ).
All of this matters if they wish to try to self-rescue. There are companies that are out there that will happily purchase the house and then rent back to the seller for the long term ( known as a 'RentBack' ) or they could opt for a quick sale and move on.
The reason they may want to 'rentback' is if they are on a sub prime mortgage , after rent back they can possibly find themselves paying far, far less as renters.
If you wish to Tengu, PM me. I have a few days off and can look into it, although I've been out of the loop for a while.