I take it you're Jewish? Have you contacted your local Jewish Welfare Federation? They might be able to help; I've found them to be very resourceful and helpful in my area.
In addition, more information would be helpful. Are you referring to care at home, or at a facility? Is your GM the widow of a Veteran? What are her medical conditions, and is dementia involved?
You need to contact the Lake County department of services & go through them to apply for Medi-cal. Medi-cal will pay for long term care. You’ll also need to work with the persons doctor on how to get admission to a nursing home unless the person is hospitalized—if they are hospitalized then you talk to talk to the hospital social worker, they will find a facility with a bed and arrange the transfer.
In addition, more information would be helpful. Are you referring to care at home, or at a facility? Is your GM the widow of a Veteran? What are her medical conditions, and is dementia involved?