Please refer to the previous answers elsewhere on this post.
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I do not believe that you will have a successful claim because the underlying claim for slander against your former guardian would likely fail. Your guardian has a qualified immunity to speak to your doctors and to voice concerns and opinions about you and your mental status. In addition you will need to prove an actual damage an it does not sound that you have sustained one. There was a reason you have had two guardians appointed for you am if the court appointed then then your potential claim sounds very tenuous.
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