Mitchell Grunwald v. Andrew J. Helm

CourtCourt of Appeals of Wisconsin
DecidedOctober 1, 2025
Docket2024AP001903
StatusUnpublished

This text of Mitchell Grunwald v. Andrew J. Helm (Mitchell Grunwald v. Andrew J. Helm) is published on Counsel Stack Legal Research, covering Court of Appeals of Wisconsin primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Mitchell Grunwald v. Andrew J. Helm, (Wis. Ct. App. 2025).

Opinion

COURT OF APPEALS DECISION NOTICE DATED AND FILED This opinion is subject to further editing. If published, the official version will appear in the bound volume of the Official Reports. October 1, 2025 A party may file with the Supreme Court a Samuel A. Christensen petition to review an adverse decision by the Clerk of Court of Appeals Court of Appeals. See WIS. STAT. § 808.10 and RULE 809.62.

Appeal No. 2024AP1903 Cir. Ct. No. 2023CV325

STATE OF WISCONSIN IN COURT OF APPEALS DISTRICT II

MITCHELL GRUNWALD AND KYRA KORNELY,

PLAINTIFFS-APPELLANTS,

V.

ANDREW J. HELM AND MEGAN L. HELM,

DEFENDANTS-RESPONDENTS.

APPEAL from a judgment of the circuit court for Ozaukee County: ADAM Y. GEROL, Judge. Reversed and cause remanded for further proceedings.

Before Neubauer, P.J., Grogan, and Lazar, JJ.

Per curiam opinions may not be cited in any court of this state as precedent

or authority, except for the limited purposes specified in WIS. STAT. RULE 809.23(3). No. 2024AP1903

¶1 PER CURIAM. Mitchell Grunwald and Kyra Kornely (hereinafter the Grunwalds) appeal the circuit court’s grant of summary judgment dismissing their Complaint1 against Andrew J. Helm and Megan L. Helm (hereinafter the Helms), which alleged four claims related to their purchase of the Helms’ home: (1) breach of contract; (2) common law intentional misrepresentation; (3) misrepresentation based on WIS. STAT. §§ 895.446 (2023-24)2 and 943.20(1)(d); and (4) misrepresentation based on WIS. STAT. § 100.18. The Grunwalds argue that the court erred in granting summary judgment to the Helms when it: (1) decided the Grunwalds waived their right to sue for breach of contract; (2) incorrectly applied the reasonable reliance standard to two of their misrepresentation claims; and (3) ruled as a matter of law that there was no misrepresentation. We reverse and remand for further proceedings consistent with this opinion.

I. BACKGROUND

¶2 In September 2021, the Grunwalds purchased a residential property located in Mequon from the Helms. The Helms had owned the property from 2013 to 2021, and during that time, the backyard frequently flooded. To manage the water issues on the property, the Helms installed a second sump pump crock. The Helms also raised complaints about the flooding issues with the City of Mequon at least four times, most recently in 2019. Following their most recent complaint to the City of Mequon, the Helms indicated the flooding issue had

1 All references to the Complaint refer to the Amended Complaint filed in December 2023. 2 All references to the Wisconsin Statutes are to the 2023-24 version.

2 No. 2024AP1903

lessened, which they believed resulted from the neighbor beginning to “tak[e] care of his property a little more.”

¶3 In the property Real Estate Condition Report, the Helms represented that the only known defect affecting the basement was related to water and moisture “seepage [that] occurs in the basement when Neighbors pond gets high.” The Helms also noted in the same Report that the backyard—but no structures— was in a flood plain. Additionally, at some point prior to listing the property for sale, the Helms painted the basement floor and walls.

¶4 Prior to purchasing the property, the Grunwalds had a licensed home inspector inspect the property. Neither the Grunwalds nor the home inspector identified any signs of leakage or flooding in the basement at that time. Since moving into the home, however, the Grunwalds have replaced four sump pumps due to their “run[ning] continuously throughout the spring and summer and often during the fall and winter.” The Grunwalds averred that the leakage and flooding happened during most rainfalls and snow melts and often went on for days or weeks. They also averred that the leakage has left behind dirt or rust stains the Grunwalds say were once hidden by the Helms’ basement paint job. The Grunwalds indicated they have observed flooding in the yard that has at times surrounded the driveway and complained that they planned to purchase a dog but that neither the dog nor their planned future children would be able to play in the backyard due to the flooding issues. Lastly, the Grunwalds averred that their detached garage has flooded and that such flooding damaged the personal property stored inside.

¶5 After experiencing this multitude of water-related issues, the Grunwalds hired an engineer to inspect the property. The engineer ultimately

3 No. 2024AP1903

opined that the Helms’ explanation of the basement seepage listed in the “Real Estate Condition Report underreported and minimized the flooding and high groundwater conditions that have occurred at the property for several years.”

¶6 The Grunwalds eventually filed suit against the Helms and alleged four causes of action: (1) breach of contract; (2) common law intentional misrepresentation; (3) misrepresentation based on WIS. STAT. §§ 895.446 and 943.20(1)(d); and (4) misrepresentation in violation of WIS. STAT. § 100.18. The Helms moved for summary judgment as to all four claims, which the circuit court granted following briefing and argument. The court reasoned that the law does not obligate sellers to explain “the magnitude” of a property’s defects disclosed in the Real Estate Condition Report and further held that the Grunwalds waived the breach of contract claim because they did not have a professional engineer inspect the property before purchasing it. In regard to the dismissal of the Grunwalds’ various misrepresentation claims, the court concluded that as to §§ 895.446 and 943.20(1)(d), the Grunwalds, as a matter of law, unreasonably relied on the Helms’ representations, and as to § 100.18, that the Helms’ representations in the Real Estate Condition Report were “objectively neither false, deceptive, nor misleading as a matter of law[.]” The Grunwalds now appeal.

II. STANDARD OF REVIEW

¶7 A moving party is entitled to summary judgment where “the pleadings, depositions, answers to interrogatories, and admissions on file, together with the affidavits, if any, show that there is no genuine issue as to any material fact and that the moving party is entitled to a judgment as a matter of law.” WIS. STAT. § 802.08(2). “We review summary judgment decisions [de novo] using the same standards and method[s]” as the circuit court. Pawlowski v. American Fam.

4 No. 2024AP1903

Mut. Ins. Co., 2009 WI 105, ¶15, 322 Wis. 2d 21, 777 N.W.2d 67. Although we review such decisions de novo, we benefit from the circuit court’s analysis. Yahnke v. Carson, 2000 WI 74, ¶10, 236 Wis. 2d 257, 613 N.W.2d 102. Additionally, “we view summary judgment materials in the light most favorable to the non-moving party[,]” and “‘[a]ny reasonable doubt as to the existence of a genuine issue of material fact must be resolved against the moving party[.]’” Midwest Neurosciences Assocs., LLC v. Great Lakes Neurosurgical Assocs., LLC, 2018 WI 112, ¶80, 384 Wis. 2d 669, 920 N.W.2d 767 (citation omitted). “A factual issue is ‘genuine’ if the evidence is such that a reasonable jury could return a verdict in favor of the non-moving party.” Id. “A ‘material fact’ is one that is ‘of consequence to the merits of the litigation.’” Id. (citation omitted).

III. DISCUSSION

A. Breach of Contract

¶8 We first consider whether the circuit court erred when it held— despite not having seen a copy of the parties’ contract—that the Grunwalds nevertheless waived their breach of contract claim by purchasing the property without hiring an expert to inspect potential water issues.

¶9 “[W]aiver is a voluntary and intentional relinquishment of a known right” that “must be clear and unambiguous.” Faust v. Ladysmith-Hawkins Sch. Sys., 88 Wis.

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Cite This Page — Counsel Stack

Bluebook (online)
Mitchell Grunwald v. Andrew J. Helm, Counsel Stack Legal Research, https://law.counselstack.com/opinion/mitchell-grunwald-v-andrew-j-helm-wisctapp-2025.