Business Court Lacks Jurisdiction Over Trust Claims Arising Under Property Code Title 9 Absent Party Agreement

In Barrett v. Barrett, Division 4 remanded a trust dispute removed from statutory probate court, holding that claims arising out of Title 9 of the Property Code fall outside the Business Court's jurisdiction under section 25A.004(g) unless all parties agree to supplemental jurisdiction. The decision clarifies that removal under section 25A.006(d) is available only from district court or county court at law—not statutory probate court—and that trust-related claims cannot be recharacterized as governance disputes to establish Business Court jurisdiction.