Carri Lopez-Mulvaney, Connor Mulvaney, Estate of Randall Mulvaney, C&L Contracting, Inc., and American Interstate Insurance Co. v. Fraser Shipyards, LLC and Travelers Property Casualty Company of America

District Court, W.D. Wisconsin·Decided August 19, 2026·No. 3:23-cv-00789·Unknown

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE WESTERN DISTRICT OF WISCONSIN

CARRI LOPEZ-MULVANEY, CONNOR MULVANEY, ESTATE OF RANDALL MULVANEY, C&L CONTRACTNG, INC., and AMERICAN INTERSTATE INSURANCE CO.,

OPINION and ORDER Plaintiffs,

v. 23-cv-789-jdp

FRASER SHIPYARDS, LLC and TRAVELERS PROPERTY CASUALTY COMPANY OF AMERICA,

Defendants.

Randall Mulvaney, a painter employed by plaintiff C&L Contracting, Inc., fell to his death while working onboard the barge Integrity, which was docked for maintenance and repairs at Fraser Shipyards in Superior, Wisconsin. Mulvaney’s estate, his wife Carri, his son Connor, C&L Contracting, and C&L Contracting’s workers compensation insurer American Interstate Insurance Company have sued Fraser and its insurer Travelers Property Casualty Company of America for negligence in connection with Mulvaney’s death. The case is scheduled for trial beginning October 5, 2026. This order addresses the pending motions to strike expert testimony and the motions in limine. It also identifies issues for further discussion at the September 9 final pretrial conference ANALYSIS A. Motions to exclude expert testimony Both sides have moved to exclude testimony from the other side’s expert witnesses. Under Daubert v. Merrell Dow Pharmaceuticals, Inc., 509 U.S. 579, 592–93 (1993) and Kumho Tire Company, Ltd. v. Carmichael, 526 U.S. 137, 147 (1999), the court must ensure that proffered expert testimony meets the requirements of Rule 702. For testimony to be admissible under Rule 702, the individual proffering the testimony must be qualified as an expert, the expert’s opinions must be based on reliable methods, and those methods must be reliably applied to the facts of the case.

As for qualifications, the question is not whether the expert is generally qualified in his or her field, but whether the expert has the necessary education and training to draw the conclusions he or she offers in the case at hand. See Hall v. Flannery, 840 F.3d 922, 926 (7th Cir. 2016). Experts may testify on the basis of practical experience as well as on the basis of formal education. Bryant v. City of Chicago, 200 F.3d 1092, 1098 (7th Cir. 2000); Walker v. Soo Line R. Co., 208 F.3d 581, 591 (7th Cir. 2000). The test for reliability is necessarily flexible. Daubert identifies factors the court may consider when determining whether an expert’s testimony is reliable—whether the expert’s

technique has been tested, subjected to peer review and publication, analyzed for errors, or is generally accepted—but these factors “neither necessarily nor exclusively appl[y] to all experts or in every case.” Gopalratnam v. Hewlett-Packard Co., 877 F.3d 771, 779–80 (7th Cir. 2017). The reliability inquiry focuses on the expert’s methodology; that is, whether the expert exercised “soundness and care” in reaching his opinions. Timm v. Goodyear Dunlop Tires N. Am., Ltd., 932 F.3d 986, 993 (7th Cir. 2019). The inquiry does not ask whether the expert’s ultimate conclusions are correct. “The soundness of the factual underpinnings of the expert's analysis and the correctness of the expert’s conclusions based on that analysis are factual matters to be

determined by the trier of fact.” Gopalratnam, 877 F.3d at 781 (quoting Smith v. Ford Motor Co., 215 F.3d 713 (7th Cir. 2000)) Finally, expert evidence is relevant if it helps the jury understand a matter beyond the knowledge and experience of a layperson. Daubert, 509 U.S. at 591–92 (“Rule 702’s ‘helpfulness’ standard requires a valid scientific connection to the pertinent inquiry as a precondition to admissibility.”). Bottom-line conclusions are not helpful and must be excluded

if the expert fails to explain how those conclusions are supported by the existing data. Zamecnik v. Indian Prairie School Dist. No. 204, 636 F.3d 874, 881 (7th Cir. 2011) (“Mere conclusions, without a hint of an inferential process, are useless to the court.” (internal quotation marks and citation omitted)). Expert testimony is also irrelevant if it does not help the jury decide the facts at issue in the case. Ancho v. Pentek Corp., 157 F.3d 512, 515 (7th Cir. 1998) (quoting Wintz v. Northrop Corp., 110 F.3d 508, 512 (7th Cir. 1997)). Federal Rule of Civil Procedure 26 requires most experts to disclose their opinions and the reasons for them in a timely expert report. Salgado by Salgado v. Gen. Motors Corp., 150 F.3d

735, 741 n.6 (7th Cir. 1998). The court’s analysis of the admissibility of an expert’s testimony is based on the opinions, conclusions, and the basis and reasons for them in the expert’s report. Ciomber v. Coop. Plus, Inc., 527 F.3d 635, 642 (7th Cir. 2008). An expert may not cure deficiencies in his report with later deposition testimony. Id. The proponent of expert evidence bears the burden of establishing that the expert’s testimony is admissible. Lewis v. CITGO Petroleum Corp., 561 F.3d 698, 705 (7th Cir. 2009). 1. Bruce Niendorf Bruce Niendorf is an economist whom plaintiffs retained to determine the value of

Randall Mulvaney’s lost earning capacity and domestic labor. Dkt. 203-5 (Niendorf report). Niendorf calculated that Mulvaney’s lost earning capacity through age 70 was $405,357, and that his lost domestic labor through his life expectancy of 81.9 years was $488,168. Id. Defendants don’t challenge Niendorf’s opinion about Mulvaney’s lost earning capacity. But they contend that Niendorf’s opinion about Mulvaney’s lost domestic labor should be excluded because Niendorf did not explain the assumptions underlying his calculations. To calculate Mulvaney’s lost domestic labor, Niendorf used Wisconsin labor statistics

to determine an average wage for the types of domestic labor that Mulvaney commonly did. Then, he applied that wage to calculate the value of Mulvaney’s labor, assuming a life expectancy of 81.9 years and assuming that Mulvaney did an average of 3.4 hours of domestic labor per day (the average for men his age according to the 2023 American Time Use Survey). Finally, he adjusted for interest rate changes and the present value of money. Defendants argue that Niendorf’s opinion is unreliable because he used generic data without explaining how it applies to this case. In particular, defendants take issue with Niendorf’s assumption that Mulvaney did 3.4 hours of domestic labor per day, because that

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Carri Lopez-Mulvaney, Connor Mulvaney, Estate of Randall Mulvaney, C&L Contracting, Inc., and American Interstate Insurance Co. v. Fraser Shipyards, LLC and Travelers Property Casualty Company of America, (W.D. Wis. 2026).

Carri Lopez-Mulvaney, Connor Mulvaney, Estate of Randall Mulvaney, C&L Contracting, Inc., and American Interstate Insurance Co. v. Fraser Shipyards, LLC and Travelers Property Casualty Company of America (Carri Lopez-Mulvaney, Connor Mulvaney, Estate of Randall Mulvaney, C&L Contracting, Inc., and American Interstate Insurance Co. v. Fraser Shipyards, LLC and Travelers Property Casualty Company of America) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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