.

Timothy J. Hartigan

Portrait of Timothy J. Hartigan

Timothy provides legal counsel to insured individuals and corporations who are defendants in claims arising in the areas of premises liability, product liability, construction defects, and auto liability. Tim also represents homeowners sued for alleged failure to disclose pre-sale conditions of their homes to buyers, a practice area referred to as real estate sellers disclosure liability. He has defended claims on behalf of companies in slip and fall cases, manufacturing design and defect cases, and failure to warn cases. 

Tim has litigated multiple construction defect matters in Philadelphia and surrounding county courts involving stucco/ EIFS coated structures and water intrusion, both as the stucco contractor and on behalf of other trades. Stucco/ EIFS issues have also been involved in many of the seller's disclosure cases he has litigated. He has handled mold litigation that were contained within larger construction-defect related claims.

Tim's significant experience in this area has allowed him to develop a working familiarity with residential construction techniques and related liability issues. He has litigated more general construction defect issues, including building code compliance on behalf of general contractors performing casualty remediation on existing structures.

To date, Tim has tried roughly a dozen cases to verdict in state and federal courts in Pennsylvania. Hundreds more have been handled to a successful conclusion through public and private arbitration forums. Tim regularly serves as an arbitrator on cases in both Montgomery and Delaware Counties.

Prior to joining Marshall Dennehey, Tim was an associate at the law firm of Kelly, McLaughlin and Foster, after working at the law firm of Margolis Edelstein. At both firms, Tim primarily handled premises liability and automobile liability matters for the insurance company clients' policyholders. Tim also maintained a solo practice focusing exclusively on automobile and casualty subrogation for nearly eight years for over a dozen different insurance company clients.

Tim is a graduate of the University of Pennsylvania's Wharton School and Rutgers School of Law. He was the recipient of the American Jurisprudence Award for Achievement in the study of Torts while matriculating at Rutgers School of Law.

    • Rutgers Law School (J.D., 1992)
    • The Wharton School of the University of Pennsylvania (B.S., 1982)
    • Pennsylvania, 1992
    • U.S. District Court Eastern District of Pennsylvania, 1993
    • Montgomery County Bar Association, 2005 - Present
    • Pennsylvania Bar Association, 1992 - Present
    • "The (Rarely Heard) Other Voice In The Courtroom," Defense Digest, 2004
    • "Limit Those Claims: Applying the 'Gist of the Action Doctrine' to Remove Negligence, Fraud, Common Law Contribution and Indemnification Claims," Defense Digest, 2008
    • Panelist, Pennsylvania Bar Institute Continuing Legal Education program, Philadelphia's Compulsory Arbitration Program, 2001
    • Represented owner of deer fencing company sued by independent contractor whose assistant was injured when a tension cable being used in the installation of a deer fence system snapped and lacerated the plaintiff's face and eyes. Established that plaintiff himself was the cause of the cable snapping and subsequent injuries. Defense verdict.
    • Defense verdict in novel negligence/premises liability case. Defended a night club which had hired an off-duty state constable as a security guard who shot and killed a pedestrian who had just pulled a handgun and fired into a crowd of people on a busy city sidewalk. Two bystander plaintiffs alleged they were struck by bullets fired by the constable's weapon. Jury apparently agreed with our position that the decedent created a public hazard and that the constable's response was necessary and appropriate. We also argued that there was no proof that the bystanders were struck by bullets from the constable's weapon. We established that at least two other weapons were discharged during the situation and there were more bullets and bullet fragments present than could be accounted for by the known weapons. One bystander did not have the bullet removed from his body, and the bullet which struck the other bystander passed through her body and was not identified from those recovered at the scene.
    • Represented seller of home accused by plaintiff of failure to disclose numerous of prior incidents of water intrusion. Conceded a single incident of water intrusion, which occurred post execution of agreement of sale and which was thought to have been repaired. Asked the jury to find for the plaintiff in the amount of approximately $2,000 for repairs related to that incident. Jury returned verdict of $2,500 for plaintiff.
    • Represented plumbing contractor joined by home builder as an additional defendant in numerous construction defect cases commenced against builder by homeowners. Successfully raised "The Gist Of The Action Doctrine" as a complete bar to claims for contribution and indemnification by builders. Five claims dismissed on motions in Chester County Court of Common Pleas. Two more claims pending in Delaware County Court of Common Pleas.

Firm Highlights

Thought Leadership

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.