Wyo. Stat. § 4-10-522

If, in any action brought against a trustee of a qualified spendthrift trust, a court takes any action whereby the court declines to apply the law of this state in determining the validity, construction or administration of the trust, or the effect of a spendthrift provision thereof, the trustee may immediately resign without the further order of any court, and cease in all respects to be trustee of the trust. In the event that the trustee does resign and no provision for a successor trustee exists in the trust instrument, the qualified beneficiaries may then petition a Wyoming district court with appropriate jurisdiction to appoint a successor trustee who shall succeed as trustee upon such terms and conditions as the district court determines to be consistent with the purposes of the trust and this act. Upon the trustee's ceasing to be trustee, the trustee shall have no power or authority other than to convey the trust property to the successor trustee named in the trust instrument or appointed by the district court.