Client-Recommended Attorneys, Adjusters and Experts
Client-Recommended Attorneys, Adjusters and Experts

Marshall Dennehey

Best's Recommended Insurance Attorneys - General Defense

717 State Street, Suite 701, Erie, Pennsylvania 16501

Established: 1997

Practice Areas

  • Accountants' Professional Liability
  • Affordable Care Act
  • Amusements, Sports and Recreation Liability
  • Appellate Advocacy and Post-Trial Practice
  • Architectural, Engineering and Construction Defect Litigation
  • Asbestos and Mass Tort Litigation
  • Automobile Liability
  • Aviation and Complex Litigation
  • Behavioral Health Risk and Liability
  • Birth and Catastrophic Injury Litigation
  • Catastrophic Claims Litigation
  • Class Action Litigation
  • Commercial Litigation
  • Construction Injury Litigation
  • Consumer Financial Services Litigation & Compliance
  • Disciplinary Board Representation
  • Electronic Medical Record and Audit Trail Litigation
  • Emergency Medical Services
  • Employment Law
  • Environmental & Toxic Tort Litigation
  • Fraud/Special Investigation
  • General Liability
  • Health Care Liability
  • Hospitality and Liquor Liability
  • Insurance Agents & Brokers Liability
  • Insurance Services - Coverage and Bad Faith Litigation
  • Intellectual Property, Technology and Media Litigation
  • Lawyers' Professional Liability
  • Long-Term Care Liability
  • Maritime Litigation
  • Medicare Set-Aside
  • Miscellaneous Professional Liability
  • New York Construction and Labor Law
  • Non-Profit D&O
  • Personal Injury Protection (PIP) Litigation
  • Premises and Retail Liability
  • Privacy and Data Security
  • Product Liability
  • Property Litigation
  • Public Entity and Civil Rights Litigation
  • Real Estate Errors & Omission Liability
  • Rideshare Liability
  • School Leaders' Liability
  • Securities and Investments Professional Liability
  • Social Services & Human Services Liability
  • Telehealth and Telemedicine
  • Trucking and Transportation Liability
  • White Collar Crime
  • Workers' Compensation

About Us

In business for more than 60 years, Marshall Dennehey is a leading civil defense litigation law firm that represents, counsels and advises self-insured businesses, insurers and professionals in a wide range of casualty, employment, professional liability, health care and workers’ compensation matters. With nearly 500 attorneys in 19 offices throughout Pennsylvania, New Jersey, New York, Connecticut, Delaware, Ohio, and Florida, we are uniquely positioned to assist clients in both avoiding litigation as well as providing them with a vigorous defense in the event of claims and suits made against them.

There are four major departments within our firm consisting of: Casualty, Workers’ Compensation, Health Care and Professional Liability. Under these four departments are nearly 50 distinct practice groups devoted to virtually every aspect of civil litigation.

The firm is managed by a three-member executive committee consisting of G. Mark Thompson, Esquire, president and CEO; Howard P. Dwoskin, Esquire, Chairman of the Board of Directors; and Craig S. Hudson, Esquire, member of the executive committee. As well, we have an eleven-member board of directors, and each of our offices is staffed by a managing shareholder.


Our commitment to client service is evident in the programs we have developed to ensure quality control procedures in the areas of time keeping and measuring productivity.

We strive to remain competitive in the constantly changing market for defense legal services. To that end, we make certain to use associates, paralegals and other legal professionals on appropriate tasks in order to assist our clients in their efforts to contain their litigation expenses. Further, we have been able to create and implement innovative and effective methods of providing cost-effective, quality representation and services for all of our clients.


For more than 30 years, our internal auditing program has distinguished us from other firms. The files of all of our shareholders and associates are periodically audited for quality control purposes, including a review of time keeping and time entry accuracy. These audits also cover administrative and legal functions.

We are fully cognizant that insurers measure the efficiency and quality of work by the length of time that a case is open, so we instruct our attorneys to act in concert with our clients to aggressively handle cases so that they are closed as expeditiously as possible with the best possible result. The frequency of file audits is every seven to nine months.


Electronic Diary System - this system ensures that every file entrusted to us receives attention from our attorneys at least every 90 days.

Electronic File Monitoring/Budgets - this program assists lead attorneys in being mindful of litigation expenses incurred when managing their files. For clients that require budgets, a system is in place to notify both the attorney and the claims representative when 75% of the budget has been exhausted. We can, upon client request, make the percentage of the budget threshold lower. This affords the client and the attorney the opportunity to assess the progress of the matter in the context of the budget established.

Roundtable Program - For especially complex and high-exposure cases, we “roundtable” cases, drawing upon the knowledge and wisdom of some of the most highly experienced attorneys within the firm. This process provides our clients with the benefit of multiple viewpoints on the case, often resulting in improved outcomes in line with client objectives. This is a value-added service; while the lead attorney will bill for the roundtable, there is no additional charge from the other participating attorneys.


Ensuring that the firm’s systems are never compromised is one of our highest priorities. To combat against increasingly complex cybersecurity threats, we perform annual vulnerability security assessments, penetration testing, monthly vulnerability scans, and audit user account access rights regularly. We utilize an activity monitoring software to protect our electronic data, in addition to electronic ethical walls to facilitate appropriate client file access.

Additional Locations

  • New Haven, Connecticut
  • Granite Square, Suite 303
  • 700 State Street
  • New Haven, Connecticut 06511
    • Telephone: 203-714-4560
  • Wilmington, Delaware
  • Nemours Building
  • 1007 North Orange Street, Suite 600
  • P.O. Box 8888 (19801)
  • Wilmington, Delaware 19801
    • Telephone: 302-552-4300
    • Fax: 302-552-4340
  • Fort Lauderdale, Florida
  • 2400 East Commercial Boulevard, Suite 1100
  • Fort Lauderdale, Florida 33308
    • Telephone: 954-847-4920
    • Fax: 954-627-6640
  • Jacksonville, Florida
  • 200 West Forsyth Street, Suite 1400
  • Jacksonville, Florida 32202
    • Telephone: 904-358-4200
    • Fax: 904-355-0019
  • Orlando, Florida
  • Landmark Center One
  • 315 East Robinson Street, Suite 550
  • Orlando, Florida 32801-1948
    • Telephone: 407-420-4380
    • Fax: 407-839-3008
  • Tampa, Florida
  • 201 East Kennedy Boulevard, Suite 1100
  • Tampa, Florida 33602
    • Telephone: 813-898-1800
    • Fax: 813-221-5026
  • Mount Laurel, New Jersey
  • 15000 Midlantic Drive, Suite 200
  • P.O. Box 5429 (08054)
  • Mount Laurel, New Jersey 08054
    • Telephone: 856-414-6000
    • Fax: 856-414-6077
  • Roseland, New Jersey
  • 425 Eagle Rock Avenue, Suite 302
  • Roseland, New Jersey 07068
    • Telephone: 973-618-4100
    • Fax: 973-618-0685
  • Melville, New York
  • 175 Pinelawn Road, Suite 250
  • Melville, New York 11747
    • Telephone: 631-232-6130
    • Fax: 631-232-6184
  • New York, New York
  • Wall Street Plaza
  • 88 Pine Street, 21st Floor
  • New York, New York 10005-1801
    • Telephone: 212-376-6400
    • Fax: 212-376-6490
  • Westchester, New York
  • 287 Bowman Avenue, Suite 404
  • Purchase, New York 10577
    • Telephone: 914-977-7300
    • Fax: 914-977-7301
  • Cincinnati, Ohio
  • 312 Elm Street, Suite 1850
  • Cincinnati, Ohio 45202
    • Telephone: 513-372-6800
    • Fax: 513-372-6801
  • Cleveland, Ohio
  • 127 Public Square, Suite 3510
  • Cleveland, Ohio 44114-1291
    • Telephone: 216-912-3800
    • Fax: 216-344-9006
  • Harrisburg, Pennsylvania
  • 200 Corporate Center Drive, Suite 300
  • Camp Hill, Pennsylvania 17011
    • Telephone: 717-651-3500
    • Fax: 717-651-9630
  • Pittsburgh, Pennsylvania
  • The Union Trust Building
  • 501 Grant Street, Suite 700
  • Pittsburgh, Pennsylvania 15219
    • Telephone: 412-803-1140
    • Fax: 412-803-1188
  • Scranton, Pennsylvania
  • 50 Glenmaura National Boulevard
  • Moosic, Pennsylvania 18507
    • Telephone: 570-496-4600
    • Fax: 570-496-0567

Personnel Information

Managing Attorney

G. Jay Habas


Erie, PA

Practice Areas
  • Workers' Compensation
  • Miscellaneous Professional Liability
  • Public Entity and Civil Rights Litigation
  • Insurance Agents & Brokers Liability
  • Amusements, Sports and Recreation Liability
  • Real Estate Errors & Omission Liability
  • Lawyers' Professional Liability
  • Premises and Retail Liability
  • Pennsylvania, 1989
  • New York, 2016
  • Gannon University, B.A. (cum laude), 1982
  • University of Notre Dame Law School, J.D., 1985

Senior Counsel

Thomas M. Lent

Erie, PA

Practice Areas
  • Health Care Liability
  • Miscellaneous Professional Liability
  • General Liability
  • Pennsylvania, 1983
  • New York, 2016
  • U.S. District Court, Western District of Pennsylvania, 1983
  • U.S. Supreme Court, 1995
  • Edinboro State College, B.A., History, 1980
  • Ohio Northern University, Pettit College of Law, J.D., 1983

Resident Shareholder

Patrick M. Carey

Erie, PA

Practice Areas
  • Automobile Liability
  • General Liability
  • Public Entity and Civil Rights Litigation
  • Architectural, Engineering and Construction Defect Litigation
  • Product Liability
  • Miscellaneous Professional Liability
  • Hospitality and Liquor Liability
  • Pennsylvania, 1987
  • New York, 2016
  • U.S. District Court, Western District of Pennsylvania, 1987
  • U.S. Court of Appeals, Third Circuit, 1993
  • Gannon University, B.S. Business Admin., 1984
  • Ohio Northern University, Pettit College of Law, J.D., 1987

Resident Associates

  • Emily C. Downing
  • Lori J. Mason

(See profile under Philadelphia, PA for additional information)

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