What do I do when alcoholic, poor, mother-in-law dies?

My husband's mother has been a self-centered, selfish, lying, alcoholic, drug abuser, loser since he was 3. She has been nothing but a thorn in both our sides and a waste of life. Luckily in the last 6 years she has been living 3 hours away with her sister and we only hear from her 1-2 times a year. She has no other children, no job, no life insurance, no capitol or property, no money, no will, and no spouse. She does, however, have 4 sisters and various nieces and nephews. She is probably not going to live much longer considering all the drugs, alcohol, and cigarettes she has consumed all her life. My question is this: Is my husband legally responsible for arranging and paying for a funeral that we cannot afford? We are low income at the moment and possibly for the next couple of years till we get back on our feet. We cannot use credit cards, get a loan, or anything. What happens if we cannot pay? Does the state handle it? Any advice would be great. Thank you.