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New Jersey Appellate Division Clarifies Limits of Transactional Attorneys’ Duties and Proof of Damages in Legal Malpractice Claims

On April 15, 2026, the New Jersey Appellate Division issued an important decision in Gonzalez v. DiBello, et al., A‑2334‑24 (App. Div. Apr. 15, 2026), affirming summary judgment in favor of a transactional attorney accused of legal malpractice and breach of fiduciary duty. Marshall Dennehey’s Jack Slimm and Jeremy Zacharias successfully represented the attorney‑defendant. The decision provides significant guidance to both the malpractice defense bar and transactional practitioners, particularly regarding the scope of an attorney’s duty of care, the role of expert testimony, and the proof required to establish causation and damages.

The malpractice action stemmed from an underlying federal lawsuit arising out of a failed transaction to purchase a Kia dealership. An investor alleged that the purchasers and their counsel engaged in a fraudulent scheme, asserting claims including fraud, breach of contract, breach of fiduciary duty, aiding and abetting, and conspiracy. Although the federal complaint named the transactional attorney, the claims against her were dismissed, and she was never found liable. The attorney neither represented the investor nor provided him with legal advice and was unaware that he was the ultimate source of investment funds. Her role was limited to preparing transaction documents required by the manufacturer to reflect a transfer of ownership interests.

Following dismissal of the federal action, purchaser Christopher Gonzalez filed a legal malpractice and breach of fiduciary duty action against the attorney. Gonzalez relied on expert reports asserting that the attorney had a duty to investigate the source of funds, determine whether her client was financially capable of consummating the transaction, and uncover any disqualifying relationships among investors. The trial court rejected those opinions, holding that New Jersey law does not impose upon transactional attorneys a duty to investigate the origins of funds passing through a trust account or to assess a client’s financial capacity absent specific circumstances. The Appellate Division affirmed, reiterating that an attorney’s duty in a transaction is “to exercise that degree of reasonable knowledge and skill that lawyers of ordinary ability and skill possess and exercise,” and that alleged violations of the Rules of Professional Conduct do not, standing alone, create a cause of action.

The Appellate Division also affirmed dismissal based on the plaintiff’s failure to establish damages and causation through competent expert testimony. Gonzalez sought, among other things, to recover all legal fees incurred defending the federal action and alleged loss of investment. However, his expert offered what the courts deemed a classic “net opinion,” failing to analyze the reasonableness of the fees, allocate which fees were allegedly caused by the claimed malpractice, or quantify any lost benefit of the bargain. The court emphasized that when damages are an essential element of a legal malpractice claim, expert testimony must do more than assert conclusions—it must explain how and why specific damages were proximately caused by the attorney’s conduct. Absent such an analysis, allowing a jury to award all defense fees would impermissibly convert compensatory damages into speculative or liquidated damages.

Finally, the Appellate Division rejected Gonzalez’s attempt to salvage his claims through a “suit‑within‑a‑suit” theory or a parallel breach of fiduciary duty claim. Citing Morris Properties, Inc. v. Wheeler, the court reaffirmed that plaintiffs cannot avoid their prima facie proof requirements by invoking trial methodologies, and that expert testimony remains necessary in esoteric malpractice cases. The court further held that Gonzalez could not show he would have recovered in the underlying federal action, particularly where he and the attorney were dismissed from that case. The fiduciary duty claim was properly dismissed as duplicative of the malpractice claim and failed for the same lack of proof on causation and damages.

This decision is a significant reaffirmation of rigorous proof standards in transactional malpractice cases and provides meaningful protection against expansive and speculative damages theories.

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Appellate Division Affirms Dismissal of Legal Malpractice Counterclaim Against Martin Law Firm

In Martin v. Loury, 2026 N.J. Super. Unpub. LEXIS 1617 (App. Div. July 15, 2026), Martin Law Firm represented Kirk Loury in an employment matter Mr. Loury filed against his former employer, Concord Equity Group Advisors LLC (“Concord”). The allegations included, among other things, that Loury was not fairly compensated for his employment with Concord. After a bench trial finding in Loury’s favor, the Appellate Division remanded this matter in February 2016 for a second trial. During the second trial, Concord CEO, Lee Argush, testified to lower compensation estimate than first trial. On remand, the second trial judge awarded Mr. Loury the same damages as the first judge, finding Mr. Argush not credible. After the findings during the second trial, Martin Law Firm filed an action against Mr. Loury to recover legal fees and costs of representing Mr. Loury in a second bench trial and Mr. Loury filed a counterclaim against Martin Law Firm for legal malpractice, alleging he should have received an even higher award in the second bench trial. In this allegation, Mr. Loury, through his expert, claimed that Martin Law Firm should have recalled Mr. Loury to the stand to rebut Mr. Argush’s testimony to allege an alternative theory of damages. Mr. Loury’s expert admitted that the second judge already rejected Mr. Argush's theory and accepted Loury's damages theory. The trial court barred Mr. Loury’s expert and dismissed Loury's counterclaim with prejudice before convening the collection trial, and the jury ruled in Martin Law Firm’s favor. Mr. Loury appealed the trial court's pretrial rulings barring his liability expert from testifying in support of his legal malpractice counterclaim, denying his motion for summary judgment on that counterclaim, and denying his motion to amend his counterclaim by adding attorney Joseph A. Martin as a codefendant. In affirming the trial court’s decision, the Appellate Division held that the trial court properly excluded Loury’s expert testimony in the counterclaim against Martin Law Firm because the expert could not explain how calling Loury as a rebuttal witness would have increased damages when the second judge already rejected Mr. Argush's testimony and accepted Loury's damages theory, making the expert’s causation opinion speculative. The Appellate Division also held that the trial court properly denied Mr. Loury's summary judgment motion on his malpractice counterclaim because reasonable minds could differ on whether Mr. Martin's alleged failures would have changed the second judge's damages award, given the judge already found Mr. Argush not credible, creating genuine factual disputes precluding summary judgment. Also, the Appellate Division held that the trial court properly denied Loury's May 2023 motion to add Joseph Martin individually because the statute of limitations expired in February 2022, six years after the 2016 appellate remand when Mr. Loury incurred new legal costs, and relation back did not apply because Mr. Loury knew Mr. Martin's identity throughout and strategically chose to sue only Martin Law Firm in his 2019 counterclaim.