Tiffany Adler v. Sonotec US Inc., Sonotec GmbH, and Christopher Portelli

CourtDistrict Court, E.D. New York
DecidedApril 28, 2026
Docket2:23-cv-01634
StatusUnknown

This text of Tiffany Adler v. Sonotec US Inc., Sonotec GmbH, and Christopher Portelli (Tiffany Adler v. Sonotec US Inc., Sonotec GmbH, and Christopher Portelli) is published on Counsel Stack Legal Research, covering District Court, E.D. New York primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Tiffany Adler v. Sonotec US Inc., Sonotec GmbH, and Christopher Portelli, (E.D.N.Y. 2026).

Opinion

UNITED STATES DISTRICT COURT EASTERN DISTRICT OF NEW YORK TIFFANY ADLER, Plaintiff, MEMORANDUM & ORDER 23-CV-1634 (GRB) (ST) -against- SONOTEC US INC., SONOTEC GMBH, AND CHRISTOPHER PORTELLI, Defendant(s). TISCIONE, United States Magistrate Judge: Tiffany Adler brought this Title VII suit against her former employer. Discovery disputes have plagued this docket. Namely, there has been tension regarding the adequacy of disclosures made by Defendant Sonotec GmbH and whether such were made through an authorized custodian. Now pending are three motions: (1) a motion to alter this Court’s prior order issuing an adverse jury instruction for spoliation; (2) a motion for fees related to that order; and (3) a new motion for discovery sanctions against GmbH. This order addresses all three. BACKGROUND 1. Parties Tiffany Adler (“Plaintiff”) was formerly employed by Sonotec US Inc. Sonotec GmbH (“GmbH”) is a German technology company. Sonotec US Inc. (“Sonotec’”) is its American subsidiary. Christopher Portelli (“Portelli”) was Plaintiff’s immediate supervisor and Managing Director of Sonotec (Collectively “Defendants”). Il. Factual Allegations and Procedural History This Court presumes familiarity with this matter. What follows are facts and procedural history pertinent to the pending motions. Portelli hired Plaintiff in 2022 as an administrative assistant, and she was soon promoted to project manager. Complaint, (“Compl.”), ECF No. 1. 1, 2, 63, 64. Plaintiff alleges Portelli -|-

engaged in a pattern of sexual harassment beginning at the start of her employment. /d. A full accounting of the alleged harassment is detailed in the complaint. This Court provides a summary. Portelli purportedly made inappropriate comments and sexual advances toward Plaintiff. Id. 85—90. Portelli was explicit about his romantic desire for Plaintiff, telling her he was in love, wanted to marry her, and have children with her. /d. § 91. Portelli frequently gave Plaintiff lavish gifts which she felt obligated to accept out of fear of losing her job. /d. □□ 60, 96-100. Portelli frequently took Plaintiff to vacations and dinners, where he allegedly made unwanted sexual advances. /d. 9] 66-72, 102-08, 120-60. While this Court need not rehash the details of the allegations, it is necessary to note they are quite disdainful. The harassment culminated at Sonotec’s holiday party on December 22, 2022, where Portelli allegedly touched her inappropriately in front of other employees. /d. 192-202, 233. On December 27, 2022, Plaintiff and Portelli had a meeting to discuss the holiday party incident and their relationship. /d. J 201-13. Unbeknownst to Portelli, Plaintiff recorded the conversion. /d. § 210. This Court will not endeavor recounting the 90-minute conversation, but Plaintiff expressed her frustration and Portelli apologized for his behavior. /d. On December 30, 2022, Portelli filed an employee-incident report with Sonotec’s human resource officer, Cristy Baldwin. The incident report describes the holiday party incident, as well as the December 27, 2022, conversation. The report notes Plaintiff’s boyfriend wanted her to take legal action. On January 4, 2022, Cristy Baldwin investigated the matter and interviewed witnesses. The investigation revealed no other employees saw the holiday party incident. The matter was dismissed, and Plaintiff and Portelli were no longer to work together. On January 5, 2023, Portelli terminated Plaintiff. Id. § 224.

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The following day, Portelli searched Plaintiff’s work computer, discovering search terms he believed could result in litigation, including: “definition sexual harassment,” “grounds for harassment lawsuit,” “sexual harassment lawyers,” and information on certain statutes of limitations. Portelli engaged legal counsel on January 8, 2022. Defense counsel immediately issued a litigation hold on all evidence relating to Plaintiff and Portelli. On March 3, 2023, Plaintiff sued Sonotec, GmbH, and Portelli alleging inter alia sexual harassment and retaliation under Title VII. See generally Compl. Discovery disputes have been the subject of much of this litigation. On September 10, 2025, this Court issued an order for Rule 37 sanctions against Defendants. See September 10, 2025 Order, ECF No. 102. There, this Court found Defendants’ duty to preserve commenced January 6, 2023. Nevertheless, Defendants deleted text messages after the preservation date. Accordingly, this Court ordered an adverse inference regarding the deleted texts. We held the jury would be given an instruction that they may presume the deleted messages between Ms. Mustafic and Ms. Stallone are unfavorable to Defendants. Now before this Court is Plaintiff’s motion to expand the scope of the adverse inference [ECF No. 103]; attorney fees pursuant to the prior Rule 37 Order [ECF No. 112]; and a new motion for discovery sanction [ECF No. 109]. DISCUSSION I. Rule 60(b)(1) Rule 60(b)(1) permits a party to seek relief from judgment based on “mistake, inadvertence, surprise, or excusable neglect.” Fed. R. Civ. P. 60(b)(1); See Kemp v. United States, 596 U.S. 528 (2022). This includes a “district court’s mistake in law” Leonard v. Lowe’ Home Ctrs., 83 F.

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App’x. 402, 403 (2d Cir. 2003), or a “mistakes of fact.” Jn re 310 Assocs., 346 F.3d 31, 35 (2d Cir. 2003). Before this Court is, purportedly, the latter. Plaintiff urges this Court to alter a portion of its September 10, 2025 Order. See Rule 60 Motion, ECF No. 103. Specifically, Plaintiff requests this Court expand the adverse inference to include text messages between Portelli and Ms. Mustafic sent between December 7, 2022, and January 6, 2023. Plaintiff argues this is necessary because Sonotec employees used iMazing — a software that deleted messages every thirty days. Thus, although the duty to preserve commenced January 6, 2023, “Ms. Mustafic would have had copies on her phone of her text messages with Christopher Portelli dating back thirty days, i.e. to December 7, 2022.” Jd. Notably, the manner and scope in which iMazing was utilized was never described by either party. After this Court’s independent analysis of the iMazing software, we found that Mr. Portelli most likely did not delete text messages the same day he backed-up and exported his texts. [Hoffer v. Tellone, 128 F.4th 433, 441 (2d Cir. 2025)] (noting that the moving party’s burden is to prove each element by a preponderance of the evidence). Rather, without more information, it merely appears that Mr. Portelli’s affirmative act of backing up and exporting texts was a reasonable effort to preserve evidence. See Skyline Steel, LLC v. PilePro, LLC, 101 F. Supp. 3d 395, 408 (S.D.N.Y. 2015) (holding litigants must take affirmative steps to preserve evidence and reduce inadvertent spoliation). September 10, 2025 Order at 14. We limited the scope of the adverse inference because “[n]either Plaintiff nor Defendants have offered the Court any argument regarding Mr. Portelli’s use of iMazing, how he used it, what filter terms he may have used, whether he chose to back-up the entirety of his text message history, or whether he had previously backed-up his iPhone.” /d. In other words, we will not further speculate the existence of texts dated before the duty to preserve commenced, especially in the absence of any proof regarding the use of iMazing.

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True, Rule 60 provides courts the ability to alter an order based on an inadvertent “mistake of the court.” Jn re 310 Assocs., 346 F.3d at 35. However, this Court’s neglect of phantom texts between Portelli and Ms.

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Bluebook (online)
Tiffany Adler v. Sonotec US Inc., Sonotec GmbH, and Christopher Portelli, Counsel Stack Legal Research, https://law.counselstack.com/opinion/tiffany-adler-v-sonotec-us-inc-sonotec-gmbh-and-christopher-portelli-nyed-2026.