As uncomfortable as it may be, mom is an adult and needs to take care of her own problems. I'd be sympathetic, but it just isn't possible for you to extend more than sympathy. She dug her own hole.
If you think you have siblings who will criticize you for this decision, you might want to pass along their phone numbers to mom and a recommendation that she ask for THEIR help.
If you think you have siblings who will criticize you for this decision, you might want to pass along their phone numbers to mom and a recommendation that she ask for THEIR help.