No. The deceased person's estate is liable for any of the debts of that person, but heirs are not liable for debts if the assets in the estate are not enough to cover the debts.
The estate is responsible for the decedent's credit card debt.
the person
The person who carried the card is still responsible for the debt.
Bank's Insurance company
the daughter has to be a responsible and kind person who would take care and help her parents in anything
The estate of the person who has died is responsible for any debts. If there is not enough money in the estate to pay these debts then the people or companies to whom the debts are owed, simply never get paid. The descendants of the person who has died do not have to meet these debts unless they are party to the debt agreement (i.e. they signed the debt agreement too - i.e. the credit card is held in joint names).
The person's estate pays for all outstanding debts.
No one. The person left is not responsible for the debt. The credit cards want people to think that the family owes for the deceased debt, but they don't.
the deceased' inheiritance
yes
Well, either your husband has better credit than you think or he will be denied as a co-signer. The very purpose of using a co-signer is so that someone with questionable credit is supported by a financially stable person who can assume the debt should the primary borrower fail to pay it. That said, if your husband was able to co-sign a loan, the only way you could be held responsible for it is if you live in a state where the law dictates that debts between married people are shared debts.
No one. The family is not responsible for the debt. Credit cards want people to think they are, but it is volunteer to pay/assume the debt of the person who passed away.