They didn't break any laws. This is not the same thing as saying they acted properly.
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I do not think there is any action for fraudulent concealment. If the relative is the trustee you will want to be certain he acts properly in administering the trust and may want to retain an attorney to represent your interests.
The above answer is not to be considered legal advice and should not be relied upon as such. You should consult your attorney for specific legal advice as to your individual situation.
What were the damages? Yes, they should not have done that, but did those actions cause any tangible harm?
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