The first legal question is “Why does Mom need a Guardianship?” In other words what are you as the spouse or child trying to do that you cannot get done.
The best way to avoid a Guardianship is to pre-select who will manage your affairs and make financial and healthcare decisions for you if you are unable to do so. The best way to do this is with a Durable Power of Attorney.
Guardianship is the legal process of having a person, the Ward, being declared legally incompetent meaning they are unable to manage their financial affairs and make healthcare decisions.