October 17, 2019

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October 15, 2019

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New York High Court Finds Expert Failed to Satisfy Causation Requirement

In a decision that reaffirms the importance of expert testimony, New York’s highest court ruled that a plaintiff’s expert had failed to establish either general or specific causation such that the plaintiff could withstand summary judgment. See Cornell v. 360 W. 51st Street Realty, LLC, 2014 NY Slip Op 02096 (N.Y. March 27, 2014). The case arose out of a woman’s claim that exposure to dampness and mold in her apartment caused her to suffer a variety of physical symptoms, which eventually forced her out of her apartment. She filed suit against her landlord and other related entities, claiming personal injuries, property damage, and constructive eviction, among other causes of action.

Defendants moved for summary judgment to dismiss all of Plaintiff’s claims, arguing that she was unable to prove that mold is capable of causing her kind of injuries (general causation) or caused her injuries (specific causation). The trial court agreed with Defendants but the intermediate appellate court reversed. The Court of Appeals applied the test established in Parker v. Mobil Oil Corp., et al., 7 N.Y.3d 434 (2006), which required an expert’s causation opinion to establish both general causation and specific causation in complex product liability and toxic tort matters.

First, the court held that Plaintiff did not establish that the scientific community generally accepted that mold could cause the kinds of adverse health effects that she suffered. The court further found that Plaintiff’s expert only showed an association, which does not necessarily mean a cause-and-effect relationship. Second, the court held that Plaintiff did not establish specific causation because Plaintiff’s expert had failed to make any effort to quantify Plaintiff’s exposure to mold, or to refute the opinion of Defendants’ expert that the mold was present at concentrations and distribution to be expected in a typical home.  

The author gratefully acknowledges the assistance of Monisola O. Salaam in the preparation of this article.

© 2019 Beveridge & Diamond PC


About this Author

Daniel M. Krainin, Environmental Attorney, Beveridge Diamond Law Firm

Daniel M. Krainin is a Principal in the New York office of Beveridge & Diamond, P.C.  He was named to the 2011 and 2012 Super Lawyers list for the New York Metropolitan area, holds an AV Preeminent Peer Review Rating from Martindale-Hubbell, and serves as a Vice Chair of the ABA Environment Section's Environmental Litigation and Toxic Torts Committee.

212-702 5417
Mackenzie Schoonmaker, Environmental Lawyer, Beveridge & Diamond Law Firm

Mackenzie Schoonmaker focuses her practice on litigation and environmental regulatory matters.  Ms. Schoonmaker’s litigation practice includes representing clients in state and federal courts, as well as in data compensation arbitrations under the federal pesticide statute, FIFRA.  Most recently, Ms. Schoonmaker was part of the Firm’s trial team that secured a defense judgment in the District of Columbia Superior Court after a three week trial on tort claims alleging the client supplied corrosive water to apartment buildings.