The best reasons are:
1 Not fit for purpose it was created.
2 Fraud, duress, or undue influence
3 Agreement of all the beneficiaries.
The answer given does not imply that an attorney-client relationship has been established and your best course of action is to have legal representation in this matter.
Agree with other attorney answer, but #3 also requires consent of the settlor; see Section 701.12 of the Wisconsin Statutes.
Also court has discretion to terminate trusts where property has less than %50,000 in value - See Section 701.13; read entire Chapter 701 of the Wisconsin Statues for other possible arguments.
My colleagues have provided you with quality advice. I would add that it might make sense for you to consult with a local trust attorney to explore your particular circumstances. After such an exploration, you will be better informed.
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