Section 1512 Of Article 2. Appointment Of Guardian Generally From California Probate Code >> Division 4. >> Part 2. >> Chapter 1. >> Article 2.

. Within 10 days after the petitioner in the guardianship proceeding becomes aware of any proceeding not disclosed in the guardianship petition affecting the custody of the proposed ward (including any adoption, juvenile court, marriage dissolution, domestic relations, or other similar proceeding affecting the proposed ward), the petitioner shall amend the guardianship petition to disclose the other proceeding.