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Adam M. Barnes

Portrait of Adam M. Barnes

Adam is a Shareholder in the Casualty Department and, for over 25 years, has concentrated his practice in the defense of companies and individuals in a wide range of general liability civil litigation matters. He routinely defends clients against claims of bodily injuries and property damage involving premises and retail liability, construction injury, property subrogation, automobile liability, trucking and transportation liability, uninsured and underinsured motorist claims, hospitality & liquor liability, and product liability.

Adam has litigated cases throughout Pennsylvania as well as West Virginia and eastern Ohio; tried matters in both state and federal courts; and handled appeals before appellate courts in all three states.

Adam has over 20 years' experience providing counsel and defense of coverage issues involving commercial general liability, auto liability, umbrella/excess liability, and property policies, as well as homeowners and personal auto liability policies.

Adam has defended private businesses against employment law matters involving claims made under Title VII, Age Discrimination in Employment Act, and Americans with Disabilities Act at the administrative level before the Equal Employment Opportunity Commission and the Pennsylvania Human Relations Commission, as well as in Pennsylvania state and federal courts.

Adam has been recognized as a Pennsylvania Super Lawyer since 2019. He has authored materials and presented for the Pennsylvania Bar Institute on a range of topics. He has authored materials and presented at seminars for general liability claim professionals on general liability claims, uninsured/underinsured motorist claims, risk transfer, and insurance coverage issues.

Adam graduated from Indiana University – Bloomington in 1993 (cum laude and Phi Beta Kappa) and earned his law degree from Indiana University School of Law – Bloomington in 1999.

    • Indiana University Maurer School of Law (J.D., 1999)
    • Indiana University-Bloomington (B.A., cum laude, 1993)
    • Pennsylvania, 1999
    • U.S. District Court Western District of Pennsylvania, 1999
    • U.S. District Court Eastern District of Pennsylvania, 2006
    • U.S. District Court Middle District of Pennsylvania, 2010
    • U.S. Court of Appeals 3rd Circuit, 2001
    • West Virginia, 2001
    • U.S. District Court Southern District of West Virginia, 2001
    • U.S. District Court Northern District of West Virginia, 2002
    • U.S. Court of Appeals 4th Circuit, 2004
    • Ohio, 2006
    • U.S. District Court Northern District of Ohio, 2012
    • Supreme Court of the United States, 2005
    • Successfully obtained summary judgment in the U.S. District Court for the Eastern District of Pennsylvania on behalf of an insurer, with the court ruling that there was no duty to defend or indemnify a security company in lawsuits arising from violent attacks at a Philadelphia bar. The court held that claims styled as negligence were barred by a broad assault and battery exclusion, which capped coverage at $250,000—a limit already exhausted—thereby precluding any additional coverage. The Cincinnati Specialty Underwriters Ins. Co. v. Mainline Private Security, LLC, 2025 WL 3644242 (E.D.Pa. 2025).
    • Successfully defended a construction contractor client in a Westmoreland County, Pennsylvania action seeking compensatory damages for alleged flood-related property damage arising from an improperly constructed sewage separation line. Obtained dismissal of the claims through Preliminary Objections based on the expiration of the applicable two-year statute of limitations. On appeal, the plaintiff argued the complaint supported a theory of continuous trespass; however, the Commonwealth Court affirmed the trial court’s decision, finding the action was untimely and that no continuous trespass claim had been pled. Milan Stefanik Slovak Library and Literary Society a/k/a Milan Stefanik Slovak Society v. Borough of East Vandergrift, et al., 2025 WL 3527288 (Pa. Commwlth. Ct. 2025).
    • Obtained a summary judgment on a first-party commercial property claim where the insured sought coverage for alleged property damage to its warehouse resulting from lessee's failure to clean it as the claim did not involve “accidental physical loss” and furthermore, the alleged damage fell within scope of policy's pollutants exclusion. Vale Vista Associates LP v. Cincinnati Casualty Co., 442 F.Supp.3d 896 (W.D.Pa. 2020) 
    • Obtained a summary judgment regarding the interpretation of an arbitration provision in a commercial auto policy with respect to a claim for underinsured motorist benefits. Rea v. Cincinnati Insurance Co., 2014 WL 4198059 (W.D.Pa. 2014) 
    • Affirming the granting of summary judgment based on enforcement of the statute of limitations to a claim for damage to residential property. Roberts v. West Virginia American Water Co., 655 S.E.2d 119 (W.Va. 2007) 
    • Affirming the granting of summary judgment based on the enforcement of professional liability exclusions contained in the businessowners package policy and personal liability policy in response to attempt to obtain coverage by the insured-attorney for a malicious prosecution claim related to the insured’s filing of a counterclaim based on Rule 11 of the West Virginia Rules of Civil Procedure on behalf of a client against the Estate prosecuting a medical negligence / wrongful death lawsuit. Boggs v. Camden-Clark Memorial Hospital Corp., 693 S.E.2d 53 (W.Va. 2010) 
    • Affirming the granting of summary judgment in favor of real estate agency and realtor arising out of the sale of residential property. Hinerman v. Rodriguez, 2013 WL 2157766 (W.Va. 2013) 
    • Affirming the granting of summary judgment in favor of real estate agency and realtor arising out of the sale of residential property in response to a subsequently added claim after the original claim was dismissed by summary judgment and upheld on appeal. Hinerman v. Rodriguez, 2015 WL 3672260 (W.Va. 2015) 
    • Affirming of summary judgment in favor of paving contractor arising out of claim of residential property damage attributed to roadway paving operations as plaintiffs failed to present competent evidence to create a genuine issue of material fact linking to contractor’s operations to the alleged damage. Grant v. Kelly Paving, Inc., 2018 WL 6015816 (W.Va. 2018) 
    • Affirming the granting of summary judgment for commercial general liability insurer against claim for defense and coverage by policyholder in response to third-party liability claim associated with the development of commercial retail plaza in southern West Virginia on the grounds the claim was excluded by the contractual liability exclusion as interpreted under Tennessee law. J.A. Street & Associates, Inc. v. BITCO General Insurance Corp., 2019 WL 1949710 (W.Va. 2019)
    • Affirming the granting of summary judgment in favor of construction contractor that deposited road construction spoil onto a private residential property at the then-owner’s request, per the then-owner’s specifications; the fill area later slipped, and the current owner sued alleging a breach of the duty of care. The appellate court affirmed that the construction contractor did not assume a duty of care to subsequent purchasers. Grisell v. Shelly & Sands, 2023 WL 7299892 (W.Va. 2023) 
    • Affirming the granting of summary judgment in favor of commercial property insurer on the grounds that the insured failed to present competent evidence to create a genuine issue of material fact that the loss event was due to direct physical loss to a transformer, which was necessary to establish coverage for the claim. Hickory Groves 339, LLC v. Cincinnati Insurance Co., 2016 WL 3261018 (Ohio.Ct.App., 4th District 2016)
    • Pennsylvania Super Lawyers (2019-2025)
    • Allegheny County Bar Association
    • Defense Trial Counsel of West Virginia
    • Ohio Bar Association
    • Pennsylvania Defense Institute
    • West Virginia Bar Association

Firm Highlights

Thought Leadership

Ohio Supreme Court Holds That a Binding Appraisal Award May Not Be Set Aside Absent Specific Evidence of Manifest Mistake or Fraud

On July 23, 2026, the Ohio Supreme Court issued a rare opinion on the binding effect of an appraisal award in a property insurance policy.  The Court in One Church held: A binding appraisal award will not be set aside unless an error is so palpably wrong that it undermines the intent of the agreement, such as corruption or gross mistake, not a mere error of judgment—To plead a claim of mistake with particularity as required by Civ.R. 9(B), facts alleged in a complaint must constitute the elements of mistake—Allegation that additional, hidden damage was discovered after appraisal award failed to state a claim of mistake that could justify setting aside binding appraisal.  The case arose out of a claim brought by One Church against its insurer, Brotherhood Mutual Insurance Company for roof damage from a storm. Pursuant to the terms of the insurance policy, the parties agreed to submit the matter to appraisal. The two appraisers inspected the building, and both appraisers agreed that the damages were $313,271.98. The insurer paid the agreed appraised amount.  Thereafter, the insured submitted a claim for an additional $206,663.09 in damages. The insured argued that these additional damages were not discovered until after the repairs began, and that they should be permitted to submit an additional claim, even though there had already been a binding appraisal of damages. The insurer refused to pay the additional damages, and the insured sued for breach of contract and bad faith.  In the trial court, the insurer moved to dismiss for failure to state a claim, arguing that the binding appraisal award barred any further claims. The insured took the position that additional hidden damages could not be discovered until after the repairs began, and therefore there was a mutual mistake. The trial court dismissed the case on the insurer’s motion, because there was no “evidence of fraud, misfeasance, or mistake”. The Court of Appeals agreed that appraisal awards are generally binding, but noted that an appraisal award can be set aside for fraud or manifest mistake. The Court of Appeals reversed and remanded the case to the trial court, finding that the insured had pled mistake with sufficient particularity. The insurer appealed to the Ohio Supreme Court. On appeal, the Ohio Supreme Court reversed the Court of Appeals, and reinstated the trial court decision dismissing the case for failure to state a claim upon which relief can be granted. The Supreme Court found that since the insured had already demanded appraisal, and the appraisal award was binding, “something more than error of judgement, such as corruption in the arbitrator, or gross mistake” must be pled with particularity, and proven for the insured to override the appraisal award. Since the complaint did not allege fraud or manifest mistake with sufficient particularity, something more than a mere error of judgment, the complaint was insufficient to state a claim.  The complaint in this case did not challenge the appraisal award. It pled that additional damages were discovered that were not apparent when the appraisal was done. It did not specify “who discovered the damages, how they were discovered, where they were found, why they were previously hidden, or why they rise to the level of a manifest mistake that the “appraiser would have corrected...had it been called to his attention”. Id at ¶22 citing Lakewood Mfg. Co. v. Home Ins. Co. of New York, 422 F.2d 796, 798 (6th Cir. 1970). Cases deciding the effect of appraisal awards are unusual. The Ohio Supreme Court’s decision in One Church relies primarily on 19th century case law for its conclusion. This emphasizes the fact that there is minimal case law deciding the effect of binding appraisal clauses in property insurance policies, and makes this case all the more significant. A lengthy dissent was written by Justice Fisher, who would have affirmed the Court of Appeals decision reversing and remanding the case for a decision on the merits. Of course, the decision works both ways, and an insurer dissatisfied with a binding appraisal award will likewise be without further recourse absent evidence of corruption, fraud, misfeasance, or manifest mistake, which must be pled with particularity. To constitute manifest mistake, “the mistake must be of such character that the arbitrator or appraiser would have corrected it had it been called to his attention.”  Lakewood Mfg. Co. v. Home Ins. Co. of New York, 422 F.2d 796, 798 (6th Cir. 1970).  The majority opinion does not specifically identify what would have been sufficient to plead mistake with particularity, or if the insured could have amended the complaint to overcome the deficiencies. The dissent argues that this was not really a case alleging mistake, but rather a question of contract interpretation. The insured did not challenge the appraisal, but argued that the hidden damage was not part of the appraisal, and the appraisal only covered the known damages.  However, this argument did not carry the day with the majority.  *Thomas F. Glassman, a shareholder in Marshall Dennehey’s Cincinnati office, filed a brief in the Ohio Supreme Court on behalf of the Ohio Association of Civil Trial Attorneys, in support of the insurer’s position.

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.