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Christian D. Marquis

Portrait of Christian D. Marquis

Christian's practice includes the defense of professionals, public entities, police officers and public officials. He has handled numerous cases defending public entities and public officials in matters involving general negligence and intentional tort claims, land use and zoning issues including municipal statutory appeals, mandamus and inverse condemnation claims, and administrative regulatory issues. He also defends public entities, public officials and police officers in civil rights actions including land use and zoning denials, unlawful use of force, wrongful arrest and malicious prosecution claims, and also wrongful termination and discrimination claims.

Christian has significant experience representing architects and engineers, construction contractors, home and code inspectors, real estate agents and other professionals in the defense of professional and general negligence, construction injuries and accidents, construction defect and breach of contract claims. He also defends clients in personal injury, commercial, environmental and toxic tort litigation matters, more recently surrounding fracking related to natural gas drilling. Christian has tried and handled cases in state and federal courts.

In 1995, Christian graduated from St. Vincent College with a Bachelor of Arts degree in mathematics. In 1996, he graduated from the Pennsylvania State University with a Bachelor of Science degree in chemical engineering.  He then earned his juris doctor from the New England School of Law, Boston, Massachusetts, in 1999.

    • New England Law | Boston (J.D., 1999)
    • The Pennsylvania State University (B.S., 1996)
    • Saint Vincent College (B.A., 1995)
    • Pennsylvania, 2000
    • U.S. District Court Western District of Pennsylvania, 2000
    • U.S. Court of Appeals 3rd Circuit, 2007
    • AV® Preeminent™ by Martindale-Hubbell®
    • The Best Lawyers in America®, "Lawyer of the Year," Pittsburgh, Personal Injury Litigation – Defendant (2019)
    • The Best Lawyers in America®, Litigation - Municipal; Personal Injury Litigation – Defendants (2014-2026)
    • Pennsylvania Super Lawyer Rising Star (2005-2006)
    • Allegheny County Bar Association
    • Pennsylvania Bar Association
    • “Taking vs. Tort: Which Is It in Relation to Sanitary Sewer Overflows?,” Defense Digest, March 2021, Vol. 27, No. 2
    • "The First Amendment's Protection Applies To Certain Comments Directed Toward Police Officers," Defense Digest, Vol. 13, No. 4, December, 2007
    • "Nanty-Glo Rule Applies to Preliminary Objections Raising Issues of Fact," Defense Digest, Vol. 10, No. 1, March, 2004
    • After the completion of discovery, successfully obtained settlement of less than $42,000 on behalf of a police department and its officer arising out of a family dispute where seven family members filed Section 1983 civil rights claims alleging malicious and retaliatory prosecution where the initial demand was over $750,000.
    • In a case where a plaintiff filed a Section 1983 civil rights claim based on alleged unlawful excessive use of force where a police canine, upon the command of its controlling officer, grabbed the plaintiff's abdomen, taking him to the ground and resulting in puncture wounds. Obtained a settlement of $20,000 where the plaintiff's demand was $250,000.
    • Currently handling a case on behalf of a roofing contractor where the plaintiff school district is alleging against multiple parties that the roof was improperly constructed, resulting in roof leakage associated damages in excess of $600,000.
    • Currently handling a case on behalf of a civil engineering and surveying firm resulting from an allegedly improperly designed storm water management system associated with a land development plan. Decedent's estate has raised claims against multiple parties that storm water drainage formed ice on a state road, causing decedent's accident.
    • Obtained summary judgment in favor of a municipal authority wherein plaintiffs claimed damages in excess of $75,000 as a result of a landslide that impacted their property allegedly as a result of a defective sanitary sewer line and corresponding trenching.
    • Obtained summary judgment in favor of a township wherein a plaintiff alleged that she sustained various personal injuries as a result of a motor vehicle versus tractor trailer accident that was allegedly caused by a defective traffic signal.
    • Successfully obtained a favorable decision on appeal before the Commonwealth Court in a reported decision on behalf of a borough and its council on the basis of high public official immunity wherein a plaintiff sought damages as a result of being debarred during a public meeting by the council from bidding on public works contracts.
    • Obtained a jury defense verdict on behalf of a township wherein a plaintiff alleged that he sustained a foot fracture after stepping into an uncovered utility trench.
    • Obtained a non-jury defense verdict on behalf of a city wherein a plaintiff alleged that his rental property sustained damages as a result of a sanitary sewer back-up.
    • Obtained a decision in favor of a home inspector after binding arbitration wherein a plaintiff alleged that the inspector was negligent for failing to discover the existence of mold during a home inspection.
    • Obtained a non-jury defense verdict on behalf of a police officer wherein a plaintiff alleged unlawful use of force during the course of an arrest.
    • Successfully negotiated a favorable settlement in the amount of $15,000 on behalf of a township wherein a police officer who demanded $75,000 alleged wrongful termination from the township police department in violation of his equal protection rights.
    • Osiris Enterprises v. Borough of Whitehall, 877 A.2d 560 (Pa. Cmwlth. 2005)
    • Osiris Enterprises v. Borough of Whitehall, 398 F. Supp. 2d 400 (W.D. Pa. 2005)

Results

Summary Judgment Obtained for School District in Slip-and-Fall Case

We secured summary judgment on behalf of a school district in Fayette County, Pennsylvania. The plaintiff alleged he sustained a concussion as a result of a fall from a loading dock when making a delivery to a middle school in the school district. He argued that the loading dock was dangerous due to inappropriate depth, causing boxes on his hand truck to strike a wall, thus pushing him off of the loading dock. The court concluded that, because of the plaintiff’s prior uneventful encounters with the loading dock, the plaintiff was aware of the intricacies of the loading dock. Additionally, the court concluded that the plaintiff was an experienced delivery driver who, as indicated, was in the best position to perceive whether conditions were dangerous or not, and was, thus, in the best position to take appropriate precautions for his safety. Therefore, the court held that the defendants had no duty to warn or otherwise act to protect the plaintiff.

Successful Appeal of Summary Judgment in Favor of Insurer

We successfully appealed a summary judgment in favor of an insurance client that had been sued by another insurance carrier for more than $1.6 million in damages arising out of a fire loss to an insured auto repair facility. The opposing insurance company had paid $1.6 million in damages and intended to pursue a product liability claim against a vehicle manufacturer, alleging a defectively manufactured vehicle had caused the fire. Our client insured the vehicle that was allegedly defective. After the insurance companies conducted a preliminary expert evaluation, the vehicle was destroyed by a salvage yard in the normal course of business. A claim was made against our client for promissory estoppel where it was alleged the vehicle was destroyed despite a promise to preserve. The Pennsylvania Superior Court affirmed the Court of Common Pleas of Erie County’s rejection of the claims against our client and agreed with our contention that the promissory estoppel claim was a disguised claim for negligent spoliation, which the Supreme Court of Pennsylvania does not recognize. 

Thought Leadership

Defense Digest

Taking vs. Tort: Which Is It in Relation to Sanitary Sewer Overflows?

March 1, 2021

Key Points: To constitute a taking, purposeful and deliberate action is required. A corrective action plan with the aim of reducing inflow and infiltration in a sanitary sewer system is evidence against the finding of a taking with respect to overflows. The failure to replace piping in an aging sanitary sewer system due to the lack of sufficient public funding does not constitute deliberate and purposeful action. In Matter of Franklin Township Sewage Authority, 233 A.3d 1014 (Pa. Cmwlth. 2020), the Commonwealth Court clarified the standard to distinguish whether a landowner damaged by repeated sanitary sewer overflows may claim that his property has been “taken” in the context of an inverse condemnation under the Pennsylvania Eminent Domain Code or whether the landowner is limited to a common law tort claim. Often this issue presents a dilemma to attorneys on both sides of the “v” in determining the legal theory applicable to the prosecution or defense of a case. Given the aging sanitary sewer infrastructure in most urban and suburban areas of Pennsylvania, coupled with the lack of sufficient public funding, this problem frequently presents itself in civil actions when damages are alleged that, if proved, might amount to the full-value level of a “taking,” although a common law tort theory such as negligence has been pleaded. In Franklin Township, the landowner commenced an inverse condemnation action by filing a petition for the appointment of a board of viewers against the Franklin Township Municipal Sanitary Authority (Authority), contending that a de facto taking of his property had resulted from repeated sanitary sewer overflows that occurred in November 2003, August 2007, and October 2012. The Authority filed preliminary objections, asserting that the petition was barred because the landowner’s proper redress was by way of a tort action. After an evidentiary hearing in the trial court, the preliminary objections were sustained, and an appeal to the Commonwealth Court followed. It was agreed that the sanitary sewer overflows onto the landowner’s property were caused by significant rainfalls that resulted in inflow and infiltration into the aging sanitary sewer system, which primarily consisted of terra cotta piping. Because the Authority attempted to reduce inflow and infiltration through a corrective action plan that involved inspections and repairs that did not intend to allow inflow and infiltration into its system, it was determined that the Authority had made a good faith attempt to fix the problem. The evidence also demonstrated that the problem could not have been eliminated unless the Authority had spent approximately $245 million to replace over 245 miles of piping. However, as with most local agencies owning aging infrastructure, the Authority did not have sufficient funding to upgrade its system. The court noted the following standard to prove a de facto taking: (1) [the] condemnor has the power to condemn the land under eminent domain procedures; (2) exceptional circumstances have substantially deprived the [landowner] of the use and enjoyment of the property; and (3) the damages sustained were the immediate, necessary, and unavoidable consequences of the exercise of the power of eminent domain. Franklin Township, 233 A.3d at 1021 (citation omitted). The court also stated that a “de facto taking must result from the governmental body’s actual exercise of the power of eminent domain.” Critical to whether a taking occurs, the court also stated, “[t]he injury complained of [must] [be] a direct result of intentional action by an entity incidental to its exercise of its eminent domain power.” In affirming the trial court, the court in Franklin Township indicated that the facts were more akin to those considered in the Commonwealth Court’s unreported opinion of In re Condemnation by the Youngwood Borough Authority, 2014 WL 10298904 (Pa. Cmwlth. Dec. 5, 2014) rather than those found in the case of In re Mountaintop Area Joint Sanitary Authority, 166 A.3d 553 (Pa. Cmwlth. 2017). The latter case, cited by the landowner, was found to involve a taking, primarily because the authority chose to operate its system in a manner that would result in sanitary sewer overflows due to the design of its system. Therefore, the overflows resulted from a purposeful and deliberate drainage plan. However, the court in Franklin Township essentially adopted the holding in the unreported Youngwood Borough Authority opinion, in essence making it precedential based on similar facts. The original sewer system of the Authority operated as intended when it was first constructed in 1968-69, utilizing terra cotta pipes. Since 2003, the landowner’s property had flooded as a result of inflow from illegally connected downspouts and infiltration due to cracks, breaks and separations that are natural to aging terra cotta pipes. The Authority had not intended to have inflow and infiltration in its system and had a corrective action plan that included a lateral inspection program to identify and repair problems. Furthermore, the Authority had even installed a check valve on the landowner’s property that stopped basement flooding, although sewage still flowed into a retention pond on the property a few times a year. Therefore, the court held that a de facto taking had not occurred because the landowner’s injury had not resulted from a purposeful or deliberate action by the Authority with respect to the manner in which it chose to operate its system. Of particular significance with respect to Pennsylvania’s aging sanitary sewer infrastructure was the court’s consideration of the evidence related to the cost to remediate the Authority’s terra cotta pipe sewage system. The trial court addressed this issue through the landowner’s argument that the Authority’s failure to replace the terra cotta piping was a deliberate and purposeful action amounting to a de facto taking. The court disagreed with the landowner, holding that, because of the lack of adequate funding, the choice to replace the entire system was not even on the table to consider. The choice would only have been available if the funding existed, and, only then, could the court have potentially found that the failure to replace the system was deliberate and purposeful so as to constitute a de facto taking.  *Christian is a shareholder and works in our Pittsburgh, Pennsylvania office. He can be reached at 412.803.1142 or cdmarquis@mdwcg.com. Defense Digest, Vol. 27, No. 2, March 2021 is prepared by Marshall Dennehey Warner Coleman & Goggin 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. ATTORNEY ADVERTISING pursuant to New York RPC 7.1. © 2021 Marshall Dennehey Warner Coleman & Goggin. All Rights Reserved. This article may not be reprinted without the express written permission of our firm. For reprints, contact tamontemuro@mdwcg.com.

Firm Highlights

Thought Leadership

Featured Conversations... Key Takeaways from A.M. Best’s Webinar on the Misuse Defense in Product Liability Claims, Featuring Michael Salvati

Michael Salvati, shareholder in our Philadelphia office, was a panelist for the April A.M. Best webinar, “The Misuse Defense: Strategic Approaches to Defending Product Liability Claims for Insurers.” During the program, Michael and his fellow panelists offered practical, jurisdiction‑specific guidance on how misuse and failure‑to‑warn theories intersect in modern product liability litigation. Michael emphasized the unique challenges these claims present—particularly in states like Pennsylvania, where evidentiary rules diverge sharply from those applied in many other jurisdictions. Failure to Warn as the “Flip Side” of Misuse Salvati explained that failure‑to‑warn allegations often arise as a direct counter to a misuse defense. As he noted, “If our misuse defense is that the plaintiff didn't use a product properly or safely, then the failure to warn claim is that we didn't tell them how to use it properly.” He emphasized that these claims can stem from either the absence of warnings or criticisms of existing warnings, such as insufficient specificity or lack of clarity about risks. Pennsylvania’s Unique Evidentiary Landscape One of Salvati’s most notable points was the stark difference in how Pennsylvania treats evidence of compliance with industry standards. He highlighted that Pennsylvania is “one of the only states…where that evidence is not admissible” in strict liability cases. Manufacturers cannot rely on compliance with ANSI, UL, ISO, or even federal safety standards to defend the product against a strict liability claim—because the focus is solely on the product itself, not the manufacturer’s conduct. Salvati acknowledged the challenge this creates for defense counsel and clients who expect such compliance to carry weight. Understanding the Three Defect Theories Salvati also walked through the three primary defect theories recognized in many jurisdictions: - Design defect – a flaw in the product’s intended design - Manufacturing defect – a deviation affecting a specific unit - Failure to warn – inadequate instructions or warnings He noted that warnings claims are increasingly significant and sometimes stand alone when design or manufacturing theories are weak. As he put it, plaintiffs often default to warnings claims because “the default position seems to be, ‘If I got hurt, there must be something wrong.’” Warranties and State‑by‑State Variations Salvati addressed how breach‑of‑warranty claims fit into the broader framework, explaining that implied warranties—such as merchantability—often overlap with strict liability in Pennsylvania. He emphasized the importance of understanding local nuances, as warranty law and admissibility rules vary widely across states. Looking Ahead: The Growing Importance of Warnings In his closing remarks, Salvati stressed that warnings should never be treated as an afterthought in product liability defense. He observed that warnings‑only claims are becoming more common and urged manufacturers and insurers to continually evaluate the clarity and completeness of their instructions and warnings. His takeaway: “We should always be talking about what are the instructions that come with our products…to bolster a misuse defense.” Listen to the complete webinar here: https://www3.ambest.com/conferences/events/eventregister.aspx?event_id=WEB1074.

Thought Leadership

The Enforceability of Online Arbitration Agreements Remains Unresolved in Pennsylvania, But the Pennsylvania Superior Court has Provided Substantive Guidance on the Issue

Key Points: The Pennsylvania Supreme Court confirms that an order compelling arbitration is not immediately appealable as collateral orders. The outcome of Chilutti II has generally left the substantive enforceability issues with browsewrap agreements unresolved in Pennsylvania. Until this issue is resolved by the Pennsylvania courts, companies operating in the Commonwealth should strive to ensure that their registration websites and/or application screens conspicuously present arbitration agreements in manners which ensure their users and consumers assent to the terms of the agreements by following the standards set forth in Chilutti I. Browsewrap agreements have been defined as agreements “‘in which a website offers terms that are disclosed only through a hyperlink and the user supposedly manifests assent to those terms simply by continuing to use the website,’ and typically do not require an electronic signature.” See, Cobb v. Tesla, Inc., 2026 WL 458470, at *1 n. 2 (Pa. Super. Feb. 18, 2026) (citation omitted). They are largely regarded as the “if you keep using this, you agree to everything buried in this link” terms embedded into almost every online agreement consumers and users sign before proceeding with purchases of goods and/or services. While consumers are generally aware of them, many almost never click on the link, nor read them in their entirety. This leaves many consumers and users ignorant of the terms and impact of such agreements. However, one’s ignorance of the otherwise neatly-tucked-away terms rarely renders them unenforceable. The issue of the enforceability of browsewrap agreements has been up for debate for some time in many jurisdictions, including Pennsylvania. Indeed, Pennsylvania had a brief grip on this issue for a period in time. Specifically, in 2023, an en banc Superior Court set forth heightened standards for companies to meet in order to secure assent and enforce browsewrap arbitration agreements. See Chilutti v. Uber Techs., Inc., 300 A.3d 430 (Pa.Super. 2023) (en banc) (“Chilutti I”) Chilutti I involved a husband and wife who sued Uber and its subsidiaries after the wife, a wheelchair bound passenger using Uber’s rideshare service, fell, struck her head, and lost consciousness due to her uber driver failing to provide a seatbelt and making an aggressive turn during the trip. The Chilutti’s filed a negligence lawsuit against Uber and its subsidiaries. In response, the defendants moved to compel arbitration, arguing that “the couple’s conduct on the company’s website and application — when they registered for the ridesharing service — signified that they agreed to be bound by the mandatory arbitration provision found in the hyperlinked terms and conditions.” The trial court granted the defendants’ petition and stayed the proceedings pending the results of arbitration, and the Chilutti’s appealed. On appeal, the Superior Court addressed two issues. First, it addressed the issue of whether it had jurisdiction to hear the appeal. A divided Superior Court determined that it did, with its basis for the holding being that the order from which the Chilutti’s appealed was a collateral order. Next, the Superior Court set out to address the merits of the Chilutti’s substantive claim. The Superior Court concluded that the parties lacked a valid agreement to arbitrate. Its rationale was that Uber’s website and application did not provide reasonably conspicuous notice of the terms to the Chiluttis. In reaching this decision, the en banc Superior Court held that browsewrap arbitration agreements are enforceable in Pennsylvania only if the registration website and application screens explicitly inform consumers that they are waiving the right to a jury trial, the registration process cannot be completed until the consumer is fully informed of this waiver, and, when the agreement is available via hyperlink, the waiver appears at the top of the first page of the terms in bold, capitalized text. Since the ruling, Pennsylvania courts have applied Chilutti I to determine if browsewrap agreements are enforceable.  For instance, the Allegheny County Court of Common Pleas invoked Chilutti I to reject an agreement that lacked an express jury-trial waiver on the assent screen.  See Miller v. Festival Fun Parks, LLC, 92 WDA 2025 (C.P. Alleg. Cnty. Mar. 24, 2025). Similarly, the Superior Court has held that notice which failed to explicitly state the consumer was waiving a jury-trial right did not “me[e]t the strict burden set forth by our en banc Court in Chilutti I.” Pierce v. FloatMe Corp., 348 A.3d 1077, 1088 (Pa. Super. 2025). While the issue of enforceability of browsewrap agreements appeared to have been resolved by Chilutti I, Pennsylvania courts’ grip on this issue has been slackened by the Pennsylvania Supreme Court’s January 21, 2026, opinion in Chilutti II. See Chilutti v. Uber Techs., Inc., 349 A.3d 826 (Pa. 2026) (“Chilutti II”). Therein, the Supreme Court did not address the merits of the Chiluttis’ substantive claim, but rather the issue of whether the Superior Court had appellate jurisdiction to immediately review the orders staying litigation pending arbitration. The Court ultimately vacated the en banc opinion on jurisdictional grounds, holding that the Superior Court did not have appellate jurisdiction because the trial court’s order from which the Chiluttis appealed did not qualify as a collateral order and, thus, the Superior Court erred in holding to the contrary and lacked jurisdiction to entertain the merits” of the Chiluttis’ substantive claim. As such, Chilutti II has rendered Chilutti I nonbinding, and the issue of enforceability of online arbitration agreements remains unresolved. However, in light of the fact the Supreme Court did not address or comment on the merits of the Chiluttis’ appeal, Chilutti I is still meaningful. Specifically, it provides guidance as to the standards a company should strive to meet to ensure they have obtained users’ assent so that they are able to enforce online arbitration agreements. Additionally, it may serve as persuasive authority in judges’ evaluations of petitions and/or motions to compel browsewrap arbitration agreements until this particular issue is properly put before our appellate courts. Keanna works in our Pittsburgh, PA office. She can be reached at (412) 803-1174 or KASeabrooks@MDWCG.com.

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.