About Jill P. Hallihan

Jill Hallihan is a shareholder in the firm’s Casualty Department, where she focuses her practice on general liability defense, including product liability, auto liability, and premises liability matters. She has successfully argued motions and tried cases to verdict in both state and federal courts. Prior to joining the firm, Jill spent over 17 years as house counsel for a major insurance company, where she led the defense of complex fraud cases.

She also has significant employment law experience representing clients in both federal and state courts, and before administrative agencies. In this capacity Jill defends claims involving discrimination, retaliation, sexual harassment, wrongful termination, family and medical leave laws, breach of contract, defamation, and related workplace torts.

Jill earned her juris doctor from Quinnipiac University School of Law in 2001, where she received the Dean’s Award and served as Vice President of the Moot Court Honor Society. She holds a bachelor’s degree from Syracuse University.

She is admitted to practice in Connecticut and before the U.S. District Court for the District of Connecticut.

Honors & awards

Connecticut Super Lawyers Rising Star
2013

Year joined

2025

 

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Services

Areas of Law

  • Other 4
    • Product Liability
    • Automobile Liability
    • Premises & Retail Liability
    • Employment Law

Practice Details

  • Firm Information
    Position
    Shareholder
    Firm Name
    Marshall Dennehey
  • Representative Cases & Transactions
    Cases
    Significant Representative Matters: Obtained a defense verdict for a l
    lord in a premises liability case involving claims of negligence
    recklessness related to the maintenance of an exterior two-story stairway railing, which the tenant alleged splintered
    caused a carpal tunnel injury.
    Secured a defense verdict for a driver sued by a pedestrian who alleged he fell after observing the defendant's vehicle approach
    stop at the curb following a collision with a mail truck that had failed to stop at a stop sign. The plaintiff, who had undergone a third cervical fusion surgery just one month prior, claimed the incident necessitated three additional fusion surgeries.
    Summary judgment in favor of a driver
    the owner of the motor vehicle after a pedestrian ran out into a dark intersection. The defendant driver had the green light
    no reason to anticipate that a pedestrian would cross four lanes of traffic
    walk into his vehicle. The Plaintiff did not present any evidence to contradict the defendant driver's affidavit.
    Summary judgment upheld the granting of summary judgment on appeal where the Plaintiff failed to file the complaint within the statute of limitations after filing a pre-judgment remedy action for the serious injuries sustained by the Plaintiff driver for the motor vehicle accident.
  • Additional Links

Experience

  • Bar Admission & Memberships
    Admissions
    2001, Connecticut
    2003, U.S. District Court for the District of Connecticut
    U.S. Court of Appeals 2nd Circuit
    Memberships

    Connecticut Bar Association
    New Haven County Bar Association.

  • Education & Certifications
    Law School
    Quinnipiac University School of Law
    Class of 2001
    J.D.
    Other Education
    Syracuse University
    Class of 1998
    B.A.
  • Personal Details & History
    Age
    Born in 1975
    Long Valley, New Jersey, November 15, 1975

Contact Jill P. Hallihan

Share Holder at Marshall Dennehey
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Granite Square, Suite 303700 State StreetNew Haven, CT 06511U.S.A.

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Attorneys FAQs

  • What year was this attorney first admitted to the bar?
    Jill P. Hallihan was admitted in 2001 to the State of Connecticut.
  • Is this attorney admitted to practice in any U.S. Federal Courts?
    Jill P. Hallihan is admitted to practice before the United States Court of Appeals for the Second Circuit and United States District Court for the District of Connecticut.
  • What law school did this attorney attend?
    Jill P. Hallihan attended Quinnipiac University School of Law.