Celestine Montague has a broad range of experience in complex and emerging issues in insurance coverage and commercial litigation. She manages complex, multimillion-dollar cases through all facets of litigation, from pre-trial strategy through post-trial relief. She represents insurance companies in state and federal courts nationwide, as well as in various alternative dispute resolution forums, including private arbitrations and mediations.

Celestine handles insurance coverage and bad faith litigation and counsels clients on various types of insurance coverage, including crime insurance and fidelity bonds; cyber, media, and technology; commercial general liability; directors and officers/financial lines, and errors and omissions; professional liability; public officials and law enforcement; employment practices liability; and sexual misconduct. She has assisted commercial liability insurers in responding to claims and addressing defense and settlement issues associated with underlying disputes involving investments, intellectual property, environmental liability, labor and employment issues, sexual misconduct, discrimination (DEI), professional errors and omissions, personal injury and regulatory investigations.


Bar and Court Admissions


New Jersey

U.S. Court of Appeals for the Third Circuit

U.S. District Court for the District of New Jersey

U.S. District Court for the Eastern District of Pennsylvania


Temple University Beasley School of Law, JD, 1994

University of Pennsylvania, MA, 1992

Dickinson College, BA, summa cum laude, 1990

News & Insights


Claims & Litigation Management Alliance

The Philadelphia Loss Conference


  • Negotiated coverage disputes among multiple carriers, policyholders, brokers and claimants, involving various issues, including indemnification provisions, additional insured agreements, and competing other insurance provisions
  • Represented carriers in litigation involving claims-made and reported issues, underwriting history, the formation and reformation of contracts, changes in coverage positions, asset purchase agreements, reinsurance agreements, claims servicing agreements, professional services exclusions, interrelated wrongful acts provisions and prior act exclusions
  • Represented insurers at the coverage review stage vis-à-vis the potential for coverage under multiple coverage part policies, providing coverage opinions, recommendations, and coverage position letters

  • Reviewed the potential for coverage under policies issued to individuals, businesses, housing associations, religious and cultural organizations, tribal entities, governmental units, and political subdivisions

  • Advised and represented clients on the duty to defend and independent counsel; an insurer’s duty to advance; an insurer’s right to reimbursement; the allocation of defense costs among insurers and policyholders; the effect of exhaustion provisions, deductibles, and self-insured retentions; an insurer’s rights and obligations to intervene in underlying actions to interject special verdict forms and/or special interrogatories; and the need to consider bonding/surety issues

  • Advised clients regarding various statutes and regulations, including state claims-handling statutes, the False Claims Act, the Computer Fraud and Abuse Act, the Employment Retirement and Income Security Act (ERISA), the Federal Tort Claims Act, the Fair Labor Standards Act, the Indian Self-Determination and Education Assistance Act, Pennsylvania Wage Payment and Collections Law, and the Whistleblower Protection Act

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