|Question 47: What rights does a person have when he or she is declared incompetent?
Answer: Answers to questions of this nature are completely dependent upon the law of the particular jurisdiction.
In my home state of Illinois, there are different forms and degrees of guardianship. The "disabled person" (Illinois doesn't use the term "incompetent" any more) has certain statutorily guaranteed rights.
Your best bet is to consult with an experienced probate attorney in your state, who will know how to deal with your particular situation.