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Legal Updates for Lawyers' Professional Liability

Legal Updates for Lawyers’ Professional Liability – THOUGHT LEADERSHIP

Legal Updates for Lawyers’ Professional Liability – September 2025

September 1, 2025

We are proud that the following members of our Disciplinary Board Representation and Lawyers’ Professional Liability Practice Groups have been recognized in the 2026 edition of The Best Lawyers in America® in the area of Professional Malpractice Law – Defendants. 

Josh J. T. Byrne (Philadelphia, PA)
Michael J. Connolly (Scranton, PA)
Howard Mankoff (Roseland, NJ) 
John L. Slimm (Mount Laurel, NJ) 
William F. Waldron Jr. (Roseland, NJ) 

Since it was first published in 1983, Best Lawyers® has become universally regarded as the definitive guide to legal excellence. Best Lawyers lists are compiled based on an exhaustive peer-review evaluation. For more information, please visit https://www.bestlawyers.com/.
 

August 21, 2025 — Josh J.T. Byrne (Philadelphia, PA) co-presented “Ethics Hotline and Special Ethical Considerations for Prosecutors” at Philadelphia District Attorney’s Office: August CLE Program hosted by the Philadelphia Bar Association.

August 19, 2025 — Josh Byrne (Philadelphia, PA), Co-Chair of the Philadelphia Bar Association’s Professional Responsibility and Guidance Committee, was a panelist at the webinar “Ethics and Legal Malpractice Avoidance.” Panelists addressed essential topics, such as strategies, ethical considerations, client communication best practices, and how to avoid common pitfalls that can lead to malpractice claims. These experienced defense counsel and carrier representatives explored the most common allegations against lawyers, including area of practice frequency and severity.

July 21, 2025 — The Legal Intelligencer published Alesia S. Sulock's and Josh Byrne’s (both of Philadelphia, PA) article “Socially Responsible Lawyers: Why You Need to Understand Social Media to Competently Represent Your Clients, Part 2.” You can read this article HERE.

July 10, 2025 — Gregory P. Graham (Pittsburgh, PA) presented “AI Litigation: The Current Landscape” at the Pennsylvania Defense Institute’s annual CLE and Conference. The program discussed the current landscape of liability claims stemming from the use of Generative and Agentic AI. 

June 2025 – James D. Greco (Scranton, PA) authored “Getting the Gist: The Evolution and Application of Pennsylvania’s Gist of the Action Doctrine in Legal Malpractice Actions,” which was published in our newsletter Defense Digest. Read his article HERE



 

Legal Update for Lawyers’ Professional Liability – September 2025 is prepared by Marshall Dennehey to provide information on recent legal developments of interest to our readers. This publication is not intended to provide legal advice for a specific situation or to create an attorney-client relationship. We would be pleased to provide such legal assistance as you require on these and other subjects when called upon. ATTORNEY ADVERTISING pursuant to New York RPC 7.1 Copyright © 2025 Marshall Dennehey, all rights reserved. No part of this publication may be reprinted without the express written permission of our firm. For reprints or inquiries, or if you wish to be removed from this mailing list, contact tamontemuro@mdwcg.com.

Firm Highlights

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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.