My mother-in-law has accured ALOT of Debt and pretty much emptied out her 401K. I dont believe she has life insurance. My husband is her only family left (her other son and her husband are are both deceased). My question is...when she passes away, is my husband and i responsible for any or all of her debt? (she is mentally unstable and does not work. She does not own a house but is paying on a car, and has much credit card debt and past due bills.)