Background: Divorce Litigation Spawns Derivative Claims

On July 11, 2024, Tiffany Sebastian filed a divorce petition in Fort Bend County district court against her husband Jeff. Both spouses worked for and owned interests in a group of automotive dealerships—Classic Chevrolet Sugar Land, Classic Chevrolet West Houston, Classic Elite Buick GMC, and 16835 Cadet Partners, LLC (collectively, "Classic"). The remaining owners—T. Bentley Durant, Thomas Durant, the Durant Classic Dynasty Trust, Michael A. Ward, and several related entities (collectively, "the Durants")—allegedly fired the Sebastians shortly after the divorce filing and demanded they relinquish their ownership interests at what the Sebastians claim was an artificially reduced price.

On September 18, 2024, Jeff filed a counterpetition adding Classic as co-respondents but asserting no claims against them. Then in December 2024, the Sebastians filed a joint third-party petition asserting derivative claims on Classic's behalf against the Durants for breach of fiduciary duty, breach of contract, conversion, money had and received, tortious interference, fraud by misrepresentation, and fraudulent transfer. Less than a month later, Classic and the Durants filed a notice of removal to the Business Court. The Sebastians moved to remand, arguing the Business Court lacked jurisdiction because Tiffany commenced the action before September 1, 2024. The Business Court agreed and remanded; the Durants and Classic sought mandamus relief.

The Dispute: Does 'Action' Mean the Entire Lawsuit or Individual Claims?

The central issue was whether the term "civil action" in Section 8 of House Bill 19—which provides that "[t]he changes in law made by this Act apply to civil actions commenced on or after September 1, 2024"—refers to the entire lawsuit or to individual claims within it. Relators argued that because the derivative commercial claims were not added until December 2024, those claims constituted a separate "action" that commenced after the effective date and could be removed to the Business Court. The Sebastians countered that the "action" commenced with Tiffany's July 2024 divorce petition, and all subsequently added claims remained part of that pre-effective-date action.

The Court's Analysis: 'Action' Refers to the Entire Lawsuit

Chief Justice Brister, writing for the Fifteenth Court, held that "action" refers to the entire lawsuit, not individual claims. The court began with the Act's plain language, noting that "action" is not defined in the statute and thus must be given its "plain and ordinary meaning." Citing dictionary definitions and Texas Supreme Court precedent, the court explained that "action" is "generally synonymous with 'suit,' which is a demand of one's rights in court," and refers to "an entire lawsuit or cause or proceeding, not to discrete 'claims' or 'causes of action' asserted within a suit." The court emphasized that the Legislature used both "action" and "claim" throughout Chapter 25A, and "[w]e presume the Legislature used both words advisedly and intended them to bear different meanings."

The court anchored its holding in In re ETC Field Services, LLC, 707 S.W.3d 924 (Tex. App.—15 Dist. Feb. 21, 2025), which held that "commence" means to "begin" or "start" and that a civil action commences with the filing of the original petition. The court noted that the Legislature was "deemed to have been aware of ETC" when it amended Chapter 25A in the 89th Regular Session but "rather than abrogate it, the Legislature created a work-around when everyone is able to agree"—new Section 25A.021, effective September 1, 2025, which allows pre-September 1, 2024 actions to be transferred to the Business Court "on an agreed motion of a party and permission of the business court." Absent such agreement, the court concluded, ETC controls.

Relators argued that Section 25A.004(f), governing supplemental jurisdiction, gives parties "a de facto unilateral severance" right to split Business Court-eligible claims from those that are not. The court rejected this argument, stating that "nothing in the original or amended chapter 25A purports to make such a right effective for actions commenced before September 1, 2024." Because the removed claims were part of a civil action filed in July 2024, the Business Court did not abuse its discretion in remanding, and the petition for mandamus was denied.

Why It Matters

This decision has significant practical implications for removal practice. It forecloses attempts to remove later-added commercial claims from cases filed before the Business Court's effective date, even when those claims would otherwise fall squarely within the court's subject-matter jurisdiction. Parties seeking Business Court adjudication of commercial disputes embedded in pre-September 1, 2024 litigation must now either obtain agreement from all parties under new Section 25A.021 (effective September 1, 2025) or litigate in the original forum. The decision also clarifies that the Legislature's use of "action" versus "claim" throughout Chapter 25A is intentional and meaningful, reinforcing that removal eligibility turns on when the lawsuit as a whole was filed, not when particular causes of action were asserted. For practitioners, the takeaway is clear: the filing date of the original petition—not amendments, counterclaims, or third-party petitions—determines Business Court removal eligibility under the Act's transitional provision.