This question has been addressed in 1 Texas court opinion:
COA13 — February 23, 2026
In In re Persian Marshall, a successor judge vacated a predecessor judge's oral rendition of a final judgment and ordered a complete retrial. The relator challenged this decision via a petition for writ of mandamus, arguing that the court was required to use a less drastic "clarifying order" under Texas Family Code § 157.421 to resolve any ambiguities. The Thirteenth Court of Appeals denied the petition, reasoning that because the oral ruling had never been reduced to a signed written judgment, the trial court maintained broad discretion over its docket. The Court concluded that the relator failed to prove the trial court acted arbitrarily or that an appeal would be an inadequate remedy.
Litigation Takeaway
“An oral ruling from a judge is fragile; until a final written decree is signed, a successor judge has the power to vacate that ruling and force a total retrial. To protect your victory, you must move immediately to get a signed judgment or secure a Rule 11 agreement that binds the parties regardless of which judge is on the bench.”