(1)    For purposes of this subchapter, and except as provided in sub. (3), a beneficiary‘s interest in a trust that is subject to the trustee‘s discretion does not constitute an interest in property or an enforceable right even if the discretion is expressed in the form of a standard of distribution or the beneficiary is then serving as sole trustee or cotrustee.

   (2)   Except as provided in this subchapter, a creditor or other claimant may not attach present or future distributions from a beneficiary’s interest in property or an enforceable right, obtain an order from a court forcing the judicial sale of the interest or compelling the trustee to make distributions, or reach the interest or right by any other means, even if the trustee has abused the trustee’s discretion.

   (3)   Subsections (1) and (2) do not apply if a beneficiary is acting as sole trustee of a trust for his or her benefit and his or her discretion to make distributions to himself or herself is not limited by an ascertainable standard or the consent of a party holding an adverse interest to the beneficiary.

   (4)   

      (a)    Except as provided in par. (b), this section does not limit the right of a beneficiary to maintain a judicial proceeding against a trustee for an abuse of discretion or failure to comply with a standard for distribution.

      (b)    The right of a beneficiary described in par. (a) may not be exercised by a creditor.