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Commercial Litigation

Our Commercial Litigation Practice Group defends the full spectrum of complex commercial civil disputes. Our lawyers serve as trusted advisors to business enterprises, financial institutions, as well as individuals facing high-stakes litigation in federal and state courts. We combine deep industry knowledge with practical trial experience, positioning clients to navigate claims efficiently while protecting their commercial interests. 

Our team is skilled in defending actions including but not limited to:

  • Breach of contract
  • Fraud
  • Unfair competition
  • Breach of fiduciary duty and
  • Disputes arising from failed transactions

Drawing on significant experience with emergency relief, our litigators also routinely handle temporary restraining orders and preliminary and permanent injunctions ensuring that clients are protected when timing and strategy are critical.

While we are fully prepared to take matters to verdict, our practice emphasizes dispute resolution strategies that align with our clients’ commercial goals. We have a strong track record of:

  • securing early dismissals
  • negotiating favorable settlements, and
  • leveraging arbitration and mediation to reduce risk and litigation spend

Our lawyers collaborate with clients and in-house counsel to build bespoke litigation plans that prioritize efficiency, predictability, and business continuity.

Beyond courtroom advocacy, we partner with clients to mitigate future litigation risk. We conduct internal investigations, advise on regulatory and compliance exposures, and provide training and counseling designed to minimize potential claims. With a multidisciplinary approach and the resources of over 500 attorneys, our Commercial Litigation Practice Group offers comprehensive, business-focused representation from pre-dispute counseling through appeals.

Results

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Philadelphia Commerce Court Grants Summary Judgment, Dismissing $2M Unfair‑Competition and Tortious‑Interference Claims

We obtained summary judgment dismissal, following Oral Argument, in a Philadelphia Commerce Court commercial litigation matter involving allegations of unfair competition and tortious inference with contract and business relationships, brought by one adult day care center against our client, a competing adult day care facility.  The plaintiff’s suit stemmed from alleged violation of regulations set forth by the Pennsylvania Department of Aging and its Office of Long-Term Living. The plaintiff’s final demand was $2 million, and no settlement offers were made before the trial court granted summary judgment.

One Month – 4 Outstanding Results! Aaron Moore Obtained Four Successful Results on Behalf of Clients in the Span of One Month

Defense verdict on behalf of a real estate broker and agent. The plaintiffs, homebuyers, claimed that the sellers’ broker and agent were liable to them for the value of fixtures that were taken by the sellers when they vacated the property, which were alleged to have been included in the sale. At a bench trial, the judge determined that neither the broker nor the agent could be held liable to the plaintiffs because the representations regarding what was included in the sale were made by the sellers. Supreme Court affirmance of dismissal of a complex legal malpractice lawsuit. Aaron and Carol Vanderwoude obtained a Delaware Supreme Court affirmance of the trial court’s dismissal of a complex legal malpractice claim. The plaintiffs, seven affiliated companies and their owners in the business of developing property, had been sued by their bank for defaulting on multiple lines of credit. The bank filed multiple lawsuits against the property developers, claiming approximately $7 million in damages, plus attorneys’ fees, which were recoverable pursuant to the terms of the promissory notes. The property developers retained our client to defend the lawsuits, asserting that the amounts claimed to be owed to the bank were significantly overstated. Our client vigorously defended the bank’s underlying lawsuits. Ultimately, the property developers settled the bank’s lawsuits for the entire amount owed, plus interest and the bank’s legal fees. The developers argued that its attorneys should have advised them to settle the bank’s claims after the lawsuits were commenced and that, if they had done so, they would not have had to pay the bank’s legal fees, our client’s legal fees, or expert witness fees, or the additional interest on the loan. The property developers also claimed that not settling with the bank earlier caused them lost business opportunities valued at nearly $1 million. The plaintiffs’ legal malpractice claims were dismissed because their expert witness, a Maryland attorney with no business litigation experience, was not qualified to serve as an expert and because their damages claims were speculative. Motion to dismiss in complex matter involving claims of fraud, misappropriation of trade secrets, tortious interference with contractual relations, and piercing the corporate veil. The plaintiff, an investment fund, had purchased a business that was controlled and primarily owned by our client. The business ultimately went bankrupt, and the plaintiff claimed that the purchase was premised upon misrepresentation by our client. The plaintiff maintained that jurisdiction in Delaware was proper pursuant to the Asset Purchase Agreement. The District Court was persuaded by arguments reflecting that it lacked personal jurisdiction over our client, a citizen of Canada, even though he signed the Asset Purchase Agreement which included language conferring jurisdiction over claims arising from the sale in Delaware. The court agreed that our client did not sign the agreement in his individual capacity, and the plaintiff’s piercing the corporate veil allegations were insufficient to confer personal jurisdiction. Dismissal of an unjust enrichment claim. Obtained dismissal of an unjust enrichment claim brought by a condominium unit owner against the attorneys who represented her condominium association. The unit owner claimed that the law firm was liable to her for unjust enrichment in connection with legal fees it received from the association for legal services provided in efforts to collect on past due assessments owed by the unit owner. Pursuant to the association’s governing documents, the charges were passed on to the unit owner. The court agreed that the fees that were paid to our client by the condominium association were properly earned.

Thought Leadership

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Cross-Border Discovery: Why Local Counsel Is Indispensable

October 17, 2025

When engaging in cross-border discovery, one must be mindful of the differences in jurisdictional issues, including but not limited to, blocking statutes, data privacy, and attorney-client privilege differences. While it is essential to have a working knowledge of discovery rules in the jurisdiction you’re seeking information in, it is also essential to engage local counsel from the outset, to help navigate jurisdictional specific issues.

Case Law Alerts

New York Court Reaffirms Internal Affairs Doctrine, Denies Standing in Derivative Suit Against English Corporation

July 1, 2025

“Few principles are more firmly entrenched in corporate law than the internal affairs doctrine, a choice-of-law rule providing that, with rare exception, the substantive law of the place of incorporation governs disputes relating to the rights and relationships of corporate shareholders and managers.” Thus opened the court’s opinion—but that did not stop the challenge mounted against it in this case. Ezrasons, the plaintiff, is a New York corporation that is the beneficial owner of shares in Barclays PLC, a bank holding company incorporated under the laws of England and Wales with its principal office in London. Ezrasons filed suit “on behalf of Barclays” against directors and an affiliated company, alleging various breaches of fiduciary duty. Those defendants moved to dismiss for lack of standing because Ezrasons is not “a registered member of Barclays,” a substantive limitation on the right to maintain derivative actions under English law. With seemingly no dispute as to the requirements of English law, Ezrasons argued, instead, that New York’s Business Corporation Law gave it the right to maintain its action in New York. On appeal, the question was whether the New York statute (BCL) displaced the internal affairs doctrine in New York common law. The answer—spread over 24 pages, and over the 57-page dissent of two dissenting Justices who accuse the majority of working to impress Marty McFly and Doc Brown with their ability to travel back in time—was no. But while the genesis of the doctrine is the nineteenth century’s corporate boom and expansion of interstate corporate operations, the rationale for upholding the rule is decidedly timeless. Like the U.S. Supreme Court, the Court of Appeals reaffirmed its stance that “only one state should have the authority to regulate a corporation’s internal affairs,” lest a company “be faced with conflicting demands.” Thus, the court held that the Business Corporation Law, which allows suits to be brought in the name of domestic or foreign corporations, does not unequivocally displace the substantive applicability of English law as regards suits in the name of English corporations. Instead, the BCL establishes the minimum predicate for New York courts to entertain the suit, without bestowing standing contrary to the law of the foreign corporation’s home. Thus, companies with operations in the Empire State can rest assured that their internal operations and “disputes relating to the rights and relationships of corporate shareholders and managers” will remain governed by the substantive law of their state of incorporation.    Case Law Alerts, 3rd Quarter, July 2025 is prepared by Marshall Dennehey to provide information on recent 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. Copyright © 2025 Marshall Dennehey, all rights reserved. This article may not be reprinted without the express written permission of our firm.

Firm Highlights

Event

29th Annual FDLA Florida Liability Claims Conference

Jim and Erica will team up to present, "Supporting the Next Generation: Connecting with Associates." This panel-style presentation will explore communication best practices from the perspective of a senior shareholder and newer associate. The discussion will focus on the communication styles of different generations and effective strategies to avoid communication breakdowns. Topics to be discussed include the hiring process, perceptions of defense work among newer lawyers, work-life balance issues after hiring, and mentoring.

Thought Leadership

NJ Workers' Compensation Legislation Update

A couple more bills were introduced for the 2026-27 session. Any updates since February have been highlighted in bold. A1023 | S3984 Medical use of cannabis under certain circumstances This requires workers’ compensation, PIP, and health insurance coverage for the medical use of cannabis under certain circumstances. It was introduced on January 13, 2026 and referred to the Assembly Financial Institutions and Insurance Committee. It was also introduced on March 19, 2026 and referred to the Senate Commerce Committee. A1045 Certain injuries to volunteer and professional public safety and law enforcement personnel This revises workers’ compensation coverage for certain injuries to volunteer and professional public safety and law enforcement personnel. It was introduced on January 13, 2026 and referred to the Assembly Labor Committee. A3724 Personal liability to employer officers for failure to pay for coverage This provides personal liability for owner, executive officer, or executive director of employer for failure to pay for workers' compensation coverage. It was introduced on January 13, 2026 and referred to the Assembly Labor Committee. On May 7, 2026, it was reported and referred to Assembly Judiciary Committee. A4617 Certain workers' compensation supplemental benefits and funding method This concerns certain workers' compensation supplemental benefits and funding method. For a permanently and totally disabled worker or surviving dependents after December 31, 1979, with some exceptions, this bill provides for an annual cost of living adjustment in the weekly workers’ compensation benefit rate. It was introduced on March 10, 2026, and referred to the Assembly Labor Committee. S241 Inclusion in database of appointed officials This requires that workers’ compensation judges and administrative law judges be included in database of appointed officials. It was introduced on January 13, 2026 to the Senate, Referred to Senate State Government, Wagering, Tourism & Historic Preservation Committee. A1870 | S1379 Workers' compensation benefits for certain workers due to September 11, 2001, terrorist attacks This provides workers’ compensation benefits for certain public safety workers who developed illness or injury as result of responding to September 11, 2001 terrorist attacks. It was introduced on January 13, 2026 and referred to the Assembly Labor Committee. It was also introduced on the same day and referred to the Senate Labor Committee. On February 5, 2026, it was reported from the Senate Committee, 2nd Reading, and referred to the Senate Budget and Appropriations Committee. A2779 | S1521 Excludes Certain Illegal Aliens This excludes certain illegal aliens from workers’ compensation and temporary disability benefits. It was introduced on January 13, 2026 and referred to the Senate Labor Committee. It was also introduced on the same day and referred to the Assembly Labor Committee. A2792 | S1555 Prevent Intoxicated Employees from Workers’ Compensation This prevents intoxicated employees from receiving workers’ compensation. It was introduced on January 13, 2026 and referred to the Senate Labor Committee. It was also introduced on the same day and referred to the Assembly Labor Committee. S2290 Increase Mandatory Retirement Age This increases statutory mandatory retirement age for Supreme Court Justices, Superior Court Judges, Tax Court Judges, Administrative Law Judges, and Workers’ Compensation Judges from 70 to 72. It was introduced on January 13, 2026, and referred to the Senate Judiciary Committee. A3167 | S2372 Workers’ compensation insurance requirements for certain corporations and partnerships. This concerns workers’ compensation insurance requirements for certain corporations and partnerships. It was introduced on January 13, 2026 and referred to the Senate Labor Committee. It was also introduced on the same day and referred to the Assembly Labor Committee. A1384 | S2757 Reduce Statute of Limitations in Medical Fee Disputes This reduces statute of limitations from six years to two years in medical fee disputes in workers’ compensation matters. It was introduced on January 13, 2026 and referred to the Senate Labor Committee. It was also introduced on the same day and referred to the Assembly Labor Committee. S3144 Testimony in Workers’ Compensation This concerns submission of testimony in workers’ compensation claims. It was introduced on January 13, 2026, and referred to the Senate Labor Committee. S3342 Increase Mandatory Retirement Age This increases statutory mandatory retirement age for Supreme Court Justices, Superior Court Judges, Tax Court Judges, Administrative Law Judges, and Workers’ Compensation Judges from 70 to 75. It was introduced on February 5, 2026, and referred to the Senate Judiciary Committee. A3548 | S3571 Maximum benefits for certain volunteers This provides certain volunteer and other workers with maximum compensation benefit for workers' compensation claim regardless of outside employment.. It was introduced on January 13, 2026 and referred to the Senate Labor Committee. On March 2, 2026, it was reported from the Senate Committee, 2nd Reading, and referred to the Senate Budget and Appropriations Committee. It was also introduced on the same day and referred to the Assembly Labor Committee. On May 7, 2026, it was reported and referred to Assembly State and Local Government Committee.

Result

Summary Judgment Secured, Preserving $750,000 in Coverage for Insured in Major Trucking Liability Dispute

Ray Freudiger and Michael A. Roberts (both of Cincinnati) successfully obtained summary judgment on behalf of their client in a coverage dispute arising from a May 19, 2022, motor vehicle accident. A permissive driver operated a box truck for an interstate trucking company and caused severe injuries to two tort victims. Prior to the accident, the insured had procured a commercial auto policy for the trucking company with stated limits of $1,000,000. Following the accident, the insurer initiated a declaratory judgment action asserting that only reduced bodily injury limits of $25,000/$50,000 applied and later counterclaimed, alleging it would not have insured the driver had he been properly submitted for approval under the policy. After extensive discovery, briefing, and oral argument, the court rejected the insurer’s attempt to shift responsibility for the $750,000 in coverage it was legally required to provide for permissive drivers under Ohio law, granting summary judgment in favor of the insured and preserving $750,000 in liability exposure.

News

Marshall Dennehey Again Earns Recognition in Distinguished Chambers USA

Thought Leadership

Legislation Proposed to Reduce the Cost of Prescription Topical Drugs

In March, Pennsylvania Senate Bill 1215 was introduced in an effort to address the high cost of prescription topical drugs. According to the bill’s sponsor, the issue is excessive reimbursement rates for topical drugs that are essentially alternate versions of readily available, less expensive over the counter drugs. A study performed by The Workers’ Compensation Research Institute (WCRI), shows that Pennsylvania has the highest share of prescription reimbursements and the highest average quarterly payments for topical drugs.  The proposed bill would provide for payment for each ingredient separately, instead of reimbursing a single inflated price, deny payment if an ingredient lacks a valid National Drug Code, limit total reimbursement to $400 per 30 day supply no matter what ingredients are used, ban reimbursement for compound drugs that duplicate existing commercial drugs, and add a flat $20 compounding fee for pharmacies or physicians who prepare the medication. The goal? To eliminate inflated billing practices and reduce costs for employers and insurers.  Currently, the bill is in committee. We will monitor the proposed legislation as it advances and provide updates as to any significant developments that may occur. 

Thought Leadership

What’s Hot in Workers’ Comp - News and Results*

RESULTS* Ben Durstein (Wilmington) obtained a favorable decision involving a claimant who fractured his patella in a work accident requiring two surgeries. The IAB rejected the claimant’s medical expert’s opinion that he sustained a 25% permanent impairment to the right lower extremity. Instead, the board accepted the opinion of the employer’s medical expert that the appropriate permanency was 13% utilizing the 6th Edition of the AMA Guides to the Evaluation of Permanent Impairment. Tony Natale III (King of Prussia) successfully had a claim petition alleging new injuries and periods of disability dismissed based on full recovery. The claimant was injured when his skid loader was struck by another loader in the process of baling hay. Original injuries were accepted and the claimant returned to work. Thereafter, the claimant abandoned work and filed a claim petition to assert new injuries and extended disability. Cross examination of the claimant’s medical expert stunningly revealed his failure to review claimant testimony, his lack of awareness of a social security disability decision detailing the existence of claimant’s alleged work-related conditions prior to the date of work injury, and his failure to understand that the claimant admitted to full recovery of injuries for which he was continuing to treat. Tony Natale III (King of Prussia) successfully obtained a defense verdict in a Medicare conditional payment lien third level appeal. The United States government alleged a Medicare conditional lien payment was due and owing in the upper six-figure range based on an auto accident and PIP policy for which the government conditionally became the primary carrier. The government argued that our client, the PIP carrier, was the primary payer and, under federal law, must reimburse the government for its conditional lien payment. At the third-level appeal hearing, the government’s position was refuted by the revelation that the date of injury tied to the medical bills associated with the lien was glaringly and chronologically prior to the insurer’s PIP policy date. The court held that based on this evidence and argument, the government could not meet its requirements to assert a lien against our client. A. Judd Woytek (King of Prussia) and John Abda (Scranton) successfully had a workers’ compensation claim petition granted for medical benefits only for a closed period with no wage loss awarded. The claimant alleged multiple injuries as the result of a very minor motor vehicle incident where a co-worker’s delivery van rolled down an incline of approximately six feet, and bumped into the rear of the claimant’s delivery van. He claimed he was thrown forward and suffered head and neck injuries, along with aggravating a pre-existing ankle injury. The claimant was also terminated following the accident for having a large hunting knife in his van, which was against the employer’s workplace violence policy. The judge granted the claim for a mild concussion and an ankle contusion, but terminated medical benefits as of the date of our IME’s. The judge found that no wage loss benefits were payable as the claimant was terminated for cause and work remained available to him. The judge found our medical experts to be more credible than the claimant’s, along with finding our four employer witnesses to all be credible. The trial team was assisted by paralegal Bonnie Zemek (King of Prussia). Eric Scott Thompson (Wilmington) was successful in a workers’ compensation matter in Delaware. On October 15, 2024, the claimant was injured while performing fire training in a multistory building when he tripped over a fire line, injuring his right knee. The claimant received regular and consistent treatment for the right knee through August 29, 2025, when he presented with left knee complaints for the first time. His treating orthopedist diagnosed a hamstring strain. The claimant was next seen October 15, 2025, with continued left knee complaints, and was referred to a total knee doctor within the practice. He was then diagnosed with a posterior root tear of the medial meniscus. Our expert testified that it was not plausible for a lateral hamstring strain to progress to a meniscal tear in two months. The claimant required a total knee replacement that was ultimately performed in February 2026. In the six months between the time of initial presentation with left knee complaints and the total knee replacement, conservative care consisted of a single injection. Our expert testified that posterior root media meniscal tears can respond to conservative care, and it was not known if it would with the claimant because it was not adequately explored. The Industrial Accident Board agreed with our expert and determined that the claimant failed to meet the burden of establishing more likely than not that the left knee complaints were caused by overloading/overuse as a result of the compensable injury to the right knee. They also agreed that the claimant was able to return to work in a sedentary capacity as opined by his physicians and our expert prior to the left total knee replacement and that there were employment opportunities available within his restrictions and capabilities as presented by the vocational expert. As a result, the claimant was no longer entitled to total disability benefits and will receive partial disability benefits for which he is limited to 300 weeks. Michele Punturi (Philadelphia) and Alana Staniszewski (Pittsburgh) had a termination petition granted in a Pennsylvania workers’ compensation case. The petition involved an echocardiography technologist with long-term employment at a local hospital who sustained a right shoulder injury resulting in surgery in January 2024. Following surgery, the claimant was diagnosed with a frozen shoulder and underwent additional surgery in June 2024, with a recommendation for a third surgery. The opinions of the defense medical expert, a Board-certified orthopedic surgeon, were found credible, persuasive, and competent based upon the extensive history he obtained from the claimant, analysis of the mechanism of injury, and review of records, along with comparison of MRIs from October 2023, February 11, 2024, and January 6, 2025, which failed to reveal any causal relationship other than a strain/sprain of the right shoulder. This evidence supported that the claimant had fully recovered, and was not in need of any ongoing medical treatment and/or restrictions. In particular, despite allegations of injuries beyond a sprain/strain, the defense medical expert identified that those allegations were not consistent with what was found at the time of surgery, and elements of the surgery were to treat a chronic and degenerative condition. Additionally there were no ongoing issues or problems with the subscapularis, which was intact, consistent with the follow-up MRI of February 11, 2024, and the claimant did not have evidence of a frozen shoulder. In fact, the MRIs and mechanism of injury, he opined, did not support any injury causing tendonitis or inflammatory conditions within the bicep tendon. Furthermore, multiple days of surveillance footage demonstrated the claimant’s normal use, with the ability to sweep and shovel snow, operate her vehicle, raise her arms above shoulder level, and use a broom – all without any observable difficulty, which challenged the claimant’s credibility of a disability and further established a lack of causation. As a result of this favorable decision, supersedeas fund reimbursement will be obtained for both wage loss and medical benefits through the supersedeas fund recovery process. *Prior Results Do Not Guarantee a Similar Outcome NEWS Heather Carbone (Jacksonville) was a panelist for a webinar hosted by The Workers’ Compensation Claims Professionals (WCCP) Association. As part of the “Meet the Experts” Series, the speakers addressed “Afterthoughts that Undermine a Successful Mediation,” highlighting the pitfalls and challenges of underprepared or unprepared mediation participants. The discussion included appropriate pre-mediation communications, setting of expectations, management of expectations, and working through the unexpected or unprepared. Attendees gained ideas about how and when to prepare, best practices, and the potential for non-parties (spouse, significant other, risk owners-insurers) to have differing perspectives or concerns than the actual employee and employer. On May 21-22, 2026, A. Judd Woytek, (King of Prussia) joined a panel at the CLM Alliance (Claims and Litigation Management Alliance) Work Comp Conference in Nashville to present "We See You: How Employee Engagement Enhances Work Comp Outcomes." Judd and his fellow panelists discussed the positive impact of employee engagement on claim outcomes, return-to-work timelines, and overall claim costs.

graphic with Maria Granaudo photo text announces she has joined the firm as a shareholder in the Health Care Dept.

News

Maria R. Granaudo Joins Marshall Dennehey’s Wilmington Office As a Shareholder in the Health Care Department

blue facade of a hospital sign against blue sky

Result

Defense Verdict in Complex Medical Malpractice Trial

Result

No-Cause Jury Verdict Secured in Wrongful Death Trial

We successfully obtained a no-cause jury verdict in a 13-day wrongful death trial. The decedent, a 59-year-old man, was admitted to the emergency room on February 15, 2019, with complaints of abdominal pain, decreased appetite, and constipation, despite the use of laxatives. The patient did not complain of any nausea, vomiting, or diarrhea. He had a significant medical history including diabetes, hypertension, prior coronary artery stenting, morbid obesity (with past gastric bypass surgery), longstanding ventral hernia, and back pain. A CT scan revealed multiple hernias and a potential closed-loop bowel obstruction, leading to a surgery consultation. Our client, an emergency general surgeon, interpreted that the patient did not have a closed loop or any significant obstruction and recommended non-surgical management. The patient was approved to have clear liquids, and had a vomiting incident shortly after, but our client was not notified. The patient was returned to NPO status, and after improving overnight, he was returned to “clears” and additional medical and renal consults were ordered. Our client did not receive any communications from the residents/nurses of any changes in the patient’s condition. On February 18, 2019, two rapid responses were called due to increased heart rate and vomiting. It is believed that the vomiting resulted in aspiration, causing sepsis, ultimately leading to the patient’s death. During the trial, the plaintiff’s sole medical expert highlighted imaging on the wrong hernia, which called into question all of his opinions in the case. We made key objections related to the expert testimony, limiting what the allegations were, and preventing new allegations from being made. After approximately two and a half hours of deliberating, the jury returned a no-cause verdict. 

News

Tiere J. Phillips Elected to the Judicial Committee of the Allegheny County Bar Association