if she currently has no insurance you should look to your state's marketplace. without income she's likely to qualify for medicaid coverage which would provide her with insurance at no cost. if your state isn't expanding medicaid she'll likely qualify for highly subsidized health insurance. there are exemptions for people unable to afford even the lowest cost plans however.
my mother is 61 retired and living with me. i cover her living expenses. . is she still going to have to get health insurance even though she has no job?