Subject to Section 2463, unless another person is appointed for that purpose, the guardian or conservator may:

1. (a) Commence and maintain actions and proceedings for the benefit of the ward or conservatee or the estate.
2. (b) Defend actions and proceedings against the ward or conservatee, the guardian or conservator, or the estate.
3. (c) File a petition commencing a case under Title 11 of the United States Code (Bankruptcy) on behalf of the ward or conservatee.