My grown daughter is collecting SSI ($700 mo.) for illness. Is she eligible for food stamps in California?

She is 38 yrs. old, does not, nor has ever paid me anything---even for food. She is a diagnosed schizophrenic and buys methamphetamine with her checks. She recently spent 21 days in jail for attacking a stranger at a Carl's Jr. restaurant......I took her in four days ago, but she threatened to kill me if I didn't buy her cigarettes----flipped out, and I had to call the police after a screaming tirade in my house and back yard. The police said she was 'totally tweaked' and asked if I wanted to press charges. So far I have contacted 3 attorneys who all say that it is my responsibility to 'document' all of her jail time and hospitalizations. I cannot do so, because she is an adult, has not lived with me, and the privacy laws dictate that no one in the medical community will give me any info. I am at my wits end. She is currently in a tent in my backyard, alternately screams at creatures and entities of her own inventions. I watch her constantly and lock my doors....feed her. Help!