Mitigation Bars Expanded Construction-Defect Damages When No-Cost Cure Is Refused; Correctability Does Not Excuse Defective Work

Introduction

Lorenz v. Williams (Mont. Sup. Ct. June 30, 2026, 2026 MT 141N) arose from a failed residential construction project in Helena, Montana. Edward C. Williams, Jr. (a disabled veteran) sought an ADA-compliant home financed through a structure that included a promissory note signed by the builders, Mark and Wade Lorenz (doing business as Lorenz Brothers Construction), and collateral pledged by Williams (the York Road property).

The parties’ relationship collapsed mid-project after disputes about scope (notably whether the basement would be finished within the original budget). Inspectors identified numerous alleged code violations. After bench trial, the District Court dismissed Williams’s trespass and Montana Consumer Protection Act (MCPA) claims, awarded $35,000 on a narrow negligence theory relating to patio repairs, and rejected broader negligence damages largely on causation and mitigation grounds. Williams appealed.

Important procedural note: This decision is a memorandum opinion designated “noncitable” and “does not serve as precedent.” Even so, it offers a clear view of how the Court applies established Montana doctrines—particularly MCPA proof requirements, deference to trial-level credibility findings, and mitigation principles in construction-defect disputes.

Summary of the Opinion

  • MCPA: The Supreme Court affirmed dismissal. While acknowledging that a materially understated or misleading construction proposal may support an MCPA claim on an appropriate record, the Court held that—given the trial court’s credibility findings and supporting testimony—Williams failed to show clear error or legal misapplication.
  • Negligence: The Court affirmed limiting Williams’s recovery to $35,000 for patio-related repairs. It rejected the idea that “correctability” erases defective work, but upheld the District Court’s findings that (i) many defects were correctable, (ii) the Lorenz Brothers offered to correct them at no additional cost, and (iii) Williams’s refusal and subsequent inaction for years supported mitigation and causation limits on damages.
  • Cross-appeal: The Court held the Lorenz Brothers could not seek affirmative reduction of the $35,000 award without a cross-appeal, but could defend the judgment on any record-supported ground.

Analysis

Precedents Cited

Standards of Review and Trial-Court Deference

The Court grounded its review in the familiar post-bench-trial framework:

  • Roland v. Davis, 2013 MT 148 — Provided the “clear error” standard for findings of fact and “correctness” review for conclusions of law. This was decisive because Williams’s appellate arguments largely attacked factual determinations (e.g., credibility, what the bid represented, and whether no-cost cure was available).
  • State v. Sanchez, 2017 MT 192 and Section 26-1-302, MCA — Reinforced that in a bench trial the district court is the “exclusive judge” of credibility. The Supreme Court repeatedly leaned on this principle to uphold the District Court’s preference for the Lorenz Brothers’ and Power Townsend’s testimony over Williams’s.
  • McCormick v. Brevig, 2007 MT 195 — Confirmed mitigation findings are factual and reviewed for clear error, insulating the District Court’s mitigation determinations unless clearly unsupported by substantial evidence.

Montana Consumer Protection Act (MCPA)

  • WLW Realty Partners, LLC v. Cont'l Partners VIII, LLC, 2015 MT 312 and Rohrer v. Knudson, 2009 MT 35 — Supplied the Court’s definition of an “unfair” act or practice: one that offends established public policy and is immoral, unethical, oppressive, unscrupulous, or substantially injurious to consumers. These cases framed the legal test, while the outcome turned on proof and deference to the trial court’s weighing of competing testimony.

Construction Negligence Duty and Mitigation

  • Mitchell v. Carlson, 132 Mont. 1 and Carroccia v. Todd, 189 Mont. 172 — Recognized the common law duty of contractors to construct a home in a “good and workmanlike manner.” The Court cited these to anchor the negligence framework, even as it ultimately resolved the dispute on causation, damages, and mitigation rather than broadly re-litigating workmanship.
  • A. T. Klemens & Sons v. Reber Plumbing & Heating Co., 139 Mont. 115 — Placed the burden of proving failure to mitigate on the party asserting it. The Court accepted that the Lorenz Brothers carried this burden through credited testimony that they offered to cure defects at no additional cost and that Williams blocked access and did not protect the structure for years.
  • McPherson v. Kerr, 195 Mont. 454 — Articulated that mitigation requires reasonable prudence, not unreasonable or impracticable action, and that the duty does not run to someone financially unable to make expenditures. The Court distinguished McPherson because the District Court found an available corrective option “at no cost,” meaning Williams’s asserted inability to pay a replacement contractor did not justify refusing the free cure and then taking no protective steps for over a decade.

Cross-Appeal Limits

  • Bucy v. Edward Jones & Co., 2019 MT 173 — Established that without a cross-appeal, a prevailing party cannot obtain affirmative relief (e.g., reducing a judgment), though it may defend the judgment on any record-supported theory. The Court applied this to prevent the Lorenz Brothers from using appellate briefing to seek a reduction of the $35,000 patio award.

Legal Reasoning

1) MCPA: Acknowledging the Theory, Rejecting the Proof

The Court did two things at once:

  1. Kept the doctrinal door open: It stated explicitly that a “materially understated or misleading residential construction proposal may support an MCPA claim on an appropriate record,” and refused to adopt a rule that vague allowances, unrealistic pricing, or unrealistic timelines can never be unfair or deceptive.
  2. Affirmed under deferential review: It held that, on this record, Williams failed to show clear error in factual findings or incorrect legal conclusions. The decisive move was deference to the District Court’s reliance on testimony from Power Townsend’s Mike Wall and the Lorenz Brothers that the bid and materials sourcing were workable and that no change orders or price increases had been issued when work stopped.

In practical terms, the Court treated the MCPA claim as fact-dependent and credibility-driven—not as a question of whether code violations or budget shortfalls, standing alone, compel an MCPA violation.

2) Negligence: “Correctable” Does Not Mean “Not Defective,” But It Can Limit Damages

The Court rejected a simplistic defense: that code violations do not matter if they can be fixed. It stated plainly: “Correctability does not erase defective work.” Nonetheless, it affirmed because the District Court made narrower, supported findings on:

  • Causation: The court credited evidence that many problems could have been remedied and that Williams’s actions prevented completion of recommended remedies.
  • Mitigation: The Lorenz Brothers’ offer to correct violations “without additional charge” was central. The Court treated refusal of a no-cost cure, followed by long-term inaction, as unreasonable under the circumstances.
  • Damages: The Court upheld limiting recovery to the patio-related $35,000 award, concluding Williams did not prove additional damages unaffected by his refusal and later inaction.

The Court also signaled an important nuance: a homeowner is not “invariably required” to allow the same contractor back, acknowledging the legitimacy of distrust in some settings. But here, appellate review was constrained by the clear-error standard and the District Court’s credibility and factual findings.

3) Cross-Appeal: Defend, Don’t Improve

Applying Bucy, the Court drew a bright line: without a cross-appeal, the Lorenz Brothers could argue in support of affirmance, but could not obtain a reduction or elimination of the $35,000 patio judgment. This reinforces the procedural discipline of Montana appellate practice—affirmance can rest on alternative grounds, but affirmative changes require a cross-appeal.

Impact

Although designated nonprecedential, the opinion is instructive in at least four ways:

  1. MCPA construction claims remain viable in theory but are intensely record-dependent: The Court’s statement that misleading construction proposals may violate the MCPA discourages categorical defenses, while the outcome underscores the evidentiary burden of proving deception/unfairness and causation of “ascertainable loss.”
  2. Correctability matters to remedy analysis even if it does not negate breach: The Court’s distinction—defective work can be “defective” yet still limit damages if it was curable and the plaintiff blocked cure—will likely shape litigation strategy around expert testimony and repair proposals.
  3. Mitigation can turn on access and “no-cost cure” offers: The Court distinguished financial inability cases by emphasizing that a free corrective option was available. Future litigants should expect close scrutiny of: written cure offers, conditions of cure, timelines, access denial, and steps taken to protect partially completed work.
  4. Cross-appeal enforcement is strict: Parties satisfied with the judgment amount must still cross-appeal if they seek to reduce an adverse component; otherwise, they are limited to defending the judgment as entered.

Complex Concepts Simplified

  • “Clear error” review: On appeal after a bench trial, the Supreme Court does not re-try the case. If there is substantial evidence supporting the trial court’s factual findings, those findings usually stand—even if the appellate court might have weighed the evidence differently.
  • MCPA “ascertainable loss”: The consumer must show a measurable financial loss (money or property) and must link that loss to the allegedly unfair or deceptive practice.
  • “Unfair or deceptive acts or practices”: Not every bad outcome is “unfair” under the MCPA. The conduct must offend public policy and be meaningfully unscrupulous/oppressive or substantially injurious, and it must cause the loss.
  • Mitigation of damages: An injured party must take reasonable steps to reduce losses. The law does not require unreasonable actions or spending money the person cannot afford—but it may require accepting practical, low-burden steps (including, in this case, a credited offer of no-cost repair) and taking basic measures to prevent avoidable deterioration.
  • Cross-appeal: If you want the appellate court to change the judgment in your favor (reduce an award against you, increase an award for you, etc.), you generally must file a cross-appeal. Without it, you can argue only why the existing judgment should be affirmed.

Conclusion

Lorenz v. Williams affirms a trial court’s narrow negligence award and dismissal of consumer-protection and other claims by applying deferential standards of review, crediting testimony that defects were correctable, and emphasizing mitigation where a no-cost cure was found available but refused. The Court also clarified that “correctable” defects are still defects—yet damages may be limited when the plaintiff’s refusal to permit cure and subsequent inaction are found to have caused or increased the losses claimed.

Even as a noncitable memorandum decision, the opinion offers a practical roadmap for litigants in Montana construction disputes: MCPA claims require a tight evidentiary chain from proposal misrepresentation to measurable loss; negligence damages may shrink dramatically if cure is blocked; and appellate outcomes often hinge on credibility findings made at the bench trial stage.