A guardian who, after appointment:
1. Is convicted of a gross misdemeanor or felony in any state;
2. Files for or receives protection as an individual or as a principal of any entity under the federal bankruptcy laws, if appointed guardian of the estate or guardian of the person and estate;
3. Is suspended for misconduct or disbarred from any professional practice which may involve the management or sale of money, investments, securities or real property, if appointed guardian of the estate or guardian of the person and estate; or
4. Is being investigated for child abuse or neglect by an agency which provides child welfare services,
Ê shall immediately inform the court of the circumstances of those events. The court may remove the guardian and appoint a successor guardian, unless the court finds that it is in the best interest of the protected minor to allow the guardian to continue in his or her appointment.