If your spouse passed away and is on the deed of the house can they put a lien on the house and does the tax due keep acring interest on it

Can who put a lien on the house?  For what reason?  Whatever the answer to these questions, assuming the debt on which the lien is based is yours, rather than your late spouse's, yes a lien can be placed on the house despite the fact that your spouse's name was on the deed, and yes, interest keeps running on the debt.