Your perception of your uncle did not match what he wrote in his will, but this is not sufficient to claim undue influence. Obviously, the nephew was a big help to his uncle, and even if the uncle did not like the nephew's wife, he may have written his new will in deference to his nephew. We don't always know or understand why someone decides to leave their property to someone, but absent anything else, it appears the will is in order.
Having said that, it is always prudent to discuss the situation with a probate attorney to see if anything appears amiss.
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This was double posted. See my other answer.
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I agree with my colleagues. Under these facts, you would have an extremely difficult time contesting this Will. I do not see any suggestion of undue influence in the facts mentioned. What were the circumstances of the Will signing? Was this done by uncle's attorney or did nephew provide a homemade Will or office supply form? There might be a *SMALL* window of opportunity if everything was set up by the nephew and proper procedures were not followed.
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