Yes. You and your closest relatives must be notified in writing.  If you do not want this to happen, you can challenge the action. As a proposed ward or protected person, you still have certain legal rights.  These rights include, but are not limited to:
The right to have (and participate in) the guardianship and conservatorship hearing;
The right to consult an attorney;
The right to have your attorney present during the hearing;
The right to bring witnesses to testify for you.
The right to have your own doctor testify;
The right to have your attorney ask questions of the witnesses against you.