Can a credit card company put a lien on a deceased persons home if the home is owned jointly with someone other than the spouse and the deceased is the only authorized user on the credit card?

Even though the joint owner is now the sole owner, it was still part of the deceased's estate when he died in debt. Creditors can apply for an Insolvency Administration Order to try to force a sale and take a cut of the proceeds, along with the joint owner.