My mother has Parkinson's and dementia and moved into my home. Monthly gross income of $2900.No other assets. Qualify for help?

She's been living in my home for 2.5 years. We currently have in-home care-givers for 3 hours daily for bath and other basics. Disease is progressing and the toll on my marriage is increasing. Her income won't cover most ALF's and I'm not in a position to offer financial help. My stepfather is Vietnam vet and still alive in NC as far as we know. We desperately need a life line. I work 42 hours weekly, my wife works six days.