CROSSOVER: Mandamus Reins In Unsupported New-Trial Orders—Useful Blueprint for Attacking Factually Vague Temporary or Post-Judgment Family Rulings

In re Arturo Perez and Texas Materials Group, Inc., 04-25-00617-CV, June 24, 2026.

On appeal from 285th Judicial District Court, Bexar County, Texas

Synopsis

Mandamus is available to vacate a new-trial order when the trial court’s stated reasons are either legally improper or unsupported by the record. In this case, the Fourth Court of Appeals applied In re Toyota Motor Sales, U.S.A., Inc. to hold that neither a generalized factual-sufficiency complaint nor an “empty chair”/section 33.004 gamesmanship finding can sustain a new-trial order without preserved objections and record-based support.

Relevance to Family Law

Although this is not a family-law case, its appellate significance for Texas divorce, SAPCR, modification, enforcement, and property-division litigation is immediate. Family courts routinely issue temporary orders, post-judgment rulings, and new-trial orders that rely on broad conclusions—“against the great weight,” “not in the child’s best interest,” “gamesmanship,” “surprise,” or “discovery abuse”—without tying those conclusions to actual record support. In re Perez gives family-law litigators a sharp mandamus framework for attacking rulings that set aside verdicts, reopen tried issues, or effectively re-try conservatorship, possession, support, or property findings on vague or unsupported reasoning.

Case Summary

Fact Summary

The underlying case arose from a vehicle collision in a construction zone. Two off-duty officers were directing traffic—one at the intersection and another acting as a flagger for vehicles exiting the work site. Perez, driving a dump truck for Texas Materials Group, exited the construction zone and collided with a vehicle in which Rios was a passenger. The central factual dispute at trial was whether Perez reasonably interpreted the flagger’s signals before entering the roadway.

Rios sued Perez and TMG. Before trial, the defendants stipulated to several matters: Perez was acting in the course and scope of employment, the collision occurred as he exited the construction zone, Rios’s vehicle had the right of way, and TMG would be vicariously liable for any negligence by Perez. Critically, the stipulation did not concede negligence, proximate cause, or causation of specific injuries.

At trial, both sides referenced the traffic-control officer. Rios himself introduced that theme through opening, witness testimony, exhibits, and argument. The defense also referred to the officer. But the defendants never designated the officer as a responsible third party under Chapter 33, and Rios did not preserve a responsible-third-party or related admissibility objection during trial. At the charge conference, plaintiff’s counsel raised the issue colloquially, then affirmatively stated there were no objections.

The jury returned a unanimous take-nothing verdict, finding that Perez’s negligence, if any, did not proximately cause the injury in question. The trial court later granted Rios’s motion for new trial, setting aside the verdict on two stated grounds: factual sufficiency and defense “gamesmanship” in presenting an “empty chair” defense focused on the undesignated traffic flagger.

Issues Decided

• Whether mandamus relief is available to review and vacate a trial court’s order granting a new trial.
• Whether a new-trial order satisfies In re Toyota Motor Sales, U.S.A., Inc. when it invokes factual sufficiency in conclusory terms without tying the rationale to record support.
• Whether a trial court may grant a new trial based on alleged section 33.004 “empty chair” gamesmanship when the complained-of conduct was not preserved by objection and the record does not support findings of discovery abuse or improper responsible-third-party blame shifting.
• Whether the relators lacked an adequate appellate remedy, making mandamus appropriate.

Rules Applied

The court relied principally on the Texas Supreme Court’s modern mandamus jurisprudence governing new-trial orders:

• In re Toyota Motor Sales, U.S.A., Inc., 407 S.W.3d 746 (Tex. 2013): a new-trial order must state understandable, reasonably specific, legally appropriate reasons, and those reasons must also be valid and supported by the record.
• In re United Scaffolding, Inc., 377 S.W.3d 685 (Tex. 2012): the order must demonstrate that the trial judge considered the specific facts and explain how the evidence undermines the jury’s finding.
• In re Rudolph Automotive, LLC, 674 S.W.3d 289 (Tex. 2023): appellate review extends to whether the articulated reasons are legally incorrect or unsupported by the record.
• In re Space Exploration Technologies Corp., 716 S.W.3d 576 (Tex. 2025): setting aside a jury verdict is an unusually serious act implicating the constitutional role of the jury.
• In re Prudential Ins. Co. of America, 148 S.W.3d 124 (Tex. 2004), and In re Reece, 341 S.W.3d 360 (Tex. 2011): mandamus requires a clear abuse of discretion and no adequate remedy at law.
• Texas Civil Practice and Remedies Code section 33.004: governs designation of responsible third parties.

The doctrinal point is straightforward but powerful: stated reasons alone are not enough. The reasons must be legally apt, preserved where preservation is required, and anchored in the actual record.

Application

The Fourth Court approached the case through the narrow but exacting lens mandated by Toyota: not whether the trial court followed the mechanics of drafting a reasoned order, but whether the stated reasons could survive legal and record scrutiny.

On the factual-sufficiency ground, the trial court relied heavily on the pretrial stipulation that Rios’s vehicle had the right of way and characterized the evidence of proximate cause as “overwhelming” and “undisputed.” The appellate court treated that as a mismatch between the stipulation and the verdict question. Right of way did not equal negligence, and it certainly did not conclusively establish proximate cause. The trial judge’s order apparently moved from a limited stipulation on traffic priority to a much broader conclusion that the jury’s no-causation answer ignored undisputed facts. Under Toyota and United Scaffolding, that was not enough. A factual-sufficiency new-trial order must explain, with record-based specificity, why the evidence undermined the actual jury finding. Conclusory labels such as “overwhelming” and “undisputed” could not substitute for that work.

The second rationale failed even more dramatically. The new-trial order accused the defense of “purposeful gamesmanship” by blaming an undesignated flagger, found that the defendants violated discovery and limine rulings, and concluded they intentionally subverted the responsible-third-party framework. But the appellate court noted several defects. First, Rios himself had introduced the traffic-control-officer evidence throughout trial, which severely undercut the theory that the defense uniquely injected an improper “empty chair.” Second, the plaintiff had not preserved objection on that basis during trial. A passing reference near the charge conference followed by “No objections from Plaintiff” would not support a post-verdict gamesmanship finding. Third, the order cited portions of the reporter’s record that did not support the findings the trial court attributed to them. In other words, the asserted misconduct lacked evidentiary footing.

That combination was fatal under Toyota. A new-trial order cannot stand where the articulated reasons either misstate the law, bypass preservation requirements, or rest on factual assertions the record does not bear out. Because an improper new-trial order deprives the verdict winner of a final judgment and forces retrial, the relators lacked an adequate appellate remedy, making mandamus the proper corrective vehicle.

Holding

The court held that mandamus relief was proper because the trial court abused its discretion in granting a new trial on grounds that were not legally appropriate or were unsupported by the record. Under In re Toyota Motor Sales, U.S.A., Inc., appellate courts do not defer to a facially detailed new-trial order if its stated reasons collapse under record review.

As to factual sufficiency, the court held that a trial court cannot set aside a jury verdict merely by declaring the evidence “overwhelming” or “undisputed” when the cited material does not actually establish the disputed element addressed by the jury. A stipulation concerning right of way did not conclusively resolve negligence or proximate cause, and the order failed to connect its broad characterization of the evidence to the record in a legally meaningful way.

As to the section 33.004/“empty chair” rationale, the court held that allegations of gamesmanship cannot support a new-trial order absent preserved objections and evidentiary support. Where the complaining party itself introduced the same subject matter, failed to object during trial, and the cited record does not substantiate the trial court’s findings of discovery or RTP abuse, the rationale is legally and factually unsustainable.

Practical Application

For family-law litigators, this opinion is more than a mandamus case about new-trial orders; it is a template for dismantling unsupported trial-court reasoning in high-conflict post-verdict and post-judgment proceedings. In a divorce jury trial on characterization, reimbursement, or fraud on the community, if the court grants a new trial based on generic assertions that the verdict is “against the great weight” without identifying the evidence that supposedly defeats the jury’s finding, Perez gives you the doctrinal hook to press mandamus. The same is true in SAPCR litigation when a court effectively reopens a conservatorship or possession determination through a factually vague order invoking “best interest” but failing to tie that conclusion to testimony, exhibits, or preserved procedural error.

The opinion is equally useful when the trial court accuses one side of “gamesmanship” concerning nonparties, undisclosed witnesses, missing records, therapists, paramours, grandparents, business entities, or alleged hidden influencers in the child’s life. In family cases, lawyers often hear some version of this complaint: “They blamed someone who isn’t a party,” “they suggested the child’s therapist caused the problem,” or “they shifted fault to a new romantic partner without pleading it.” Perez teaches that appellate durability turns on preservation and record support, not post hoc frustration. If there was no contemporaneous objection, no motion to strike, no request for instruction, and no actual record showing a rule violation, the trial court cannot repair the omission by recasting the matter as strategic misconduct after an unfavorable result.

This case also helps the prevailing party defend a favorable result. If you win a bench or jury trial in a family matter, and the other side seeks a do-over using broad equitable language, insist that the court specify the exact legal basis, the exact record cites, and the exact preserved complaint. Vague dissatisfaction is not a substitute for a reviewable legal reason.

Checklists

Building a Mandamus Record Against an Unsupported New-Trial Order

• Obtain the signed new-trial order immediately and analyze each articulated reason separately.
• Compare every stated rationale to the actual trial question or dispositive issue the court set aside.
• Pull the precise reporter’s-record and clerk’s-record citations bearing on each finding in the order.
• Identify where the order overstates, misstates, or omits material record context.
• Flag any place where the order treats a limited stipulation as a concession of a broader element.
• Determine whether the complained-of issue was preserved by objection, request, motion, or charge complaint.
• Document any affirmative waiver, including “no objection” statements.
• Evaluate whether the order relies on legal theories not raised or not preserved below.
• File mandamus promptly and include a carefully indexed appendix and record.

Opposing “Gamesmanship” Findings in Family Cases

• Determine whether the alleged misconduct was actually objected to when it occurred.
• Review whether the complaining party introduced the same evidence or theme first.
• Check whether any limine ruling was merely preliminary rather than a definitive admissibility ruling.
• Separate true disclosure violations from ordinary impeachment, rebuttal, or inferential argument.
• Confirm whether the trial court’s cited record pages actually support the misconduct findings.
• Emphasize that post-verdict complaints cannot substitute for contemporaneous preservation.
• Show prejudice analysis, not just accusation; ask what ruling, evidence, or argument actually changed the result.

Drafting a Defensible Motion for New Trial

• Tie each asserted ground to a specific jury finding or trial ruling.
• Cite the exact testimony or exhibits that make the finding unsustainable.
• Explain why the complained-of evidence or conduct was preserved and harmful.
• Avoid conclusory adjectives such as “overwhelming,” “undisputed,” or “egregious” without record support.
• Distinguish between a stipulation on one element and proof of all elements.
• If asserting discovery abuse, identify the request, the response, the omission, the objection, and the prejudice.
• If asserting improper nonparty blame, identify the legal basis for exclusion and where that complaint was preserved.
• Draft a proposed order that is specific, accurate, and fully anchored in the record.

Protecting a Favorable Family Verdict or Post-Judgment Ruling

• Request that any new-trial order state precise reasons with record citations.
• Object to unsupported factual assertions in proposed orders.
• Preserve the argument that facial specificity alone does not satisfy Toyota.
• Highlight where the losing party failed to object, request an instruction, or raise a charge complaint.
• Resist attempts to convert a tactical trial loss into a vague “best interest” or “equity” do-over.
• Consider mandamus early if the order nullifies a favorable jury verdict or forces retrial without valid grounds.

Using Perez in Divorce, Custody, and Property Litigation

• In divorce property cases, use it to challenge new-trial orders attacking valuation, characterization, or reimbursement findings without record-based specificity.
• In custody trials, use it to attack orders reopening verdicts or final rulings based on generalized “best interest” concerns untethered to evidence.
• In enforcement or modification proceedings, use it where the court recasts unpreserved evidentiary complaints as fairness concerns after the fact.
• In cases involving nonparties—therapists, grandparents, romantic partners, business partners, accountants—use it to insist on preservation before any “blame-shifting” rationale can support relief.
• In bench-trial settings, use its reasoning by analogy against factually vague post-judgment orders that alter substantive results without clear evidentiary grounding.

Citation

In re Arturo Perez and Texas Materials Group, Inc., No. 04-25-00617-CV, ___ S.W.3d ___, 2026 WL ___ (Tex. App.—San Antonio June 24, 2026, orig. proceeding) (mem. op.).

Full Opinion

Read the full opinion here

Family Law Crossover

This ruling can be weaponized effectively in Texas family litigation because family courts often operate in the space between broad discretion and inadequate explanation. Perez reminds appellate counsel that discretion is not opacity. If a court grants a new trial after a jury decides conservatorship, property characterization, or a narrow fact issue, the order must do more than signal disagreement with the verdict; it must identify a legally proper reason that the record actually supports. That makes Perez an excellent tool when the trial judge’s stated rationale sounds substantial but is analytically hollow.

It is especially potent against post-judgment narratives that one side “played games” with third parties or undisclosed themes. In family cases, that accusation may involve hidden assets through a business affiliate, improper influence by a grandparent, alienation by a new spouse, manipulation by a therapist, or fault-shifting to someone outside the pleadings. Perez gives the prevailing party a disciplined response: show me the preserved objection, show me the record cite, and show me the legal rule that was actually violated. Without those components, a disappointment-driven reset should be vulnerable to mandamus.

Strategically, the case also helps trial lawyers frame their records for later extraordinary relief. If you anticipate that a judge may be tempted to “split the baby” after a decisive verdict or sharply contested hearing, preserve everything. Force clarity. Make the court state the basis for any adverse post-trial action. Then, if the ruling comes back dressed in generalized fairness language, Perez supplies the blueprint for arguing that the order is not merely wrong—it is reviewably unsupported.

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