Leadership Team

Our Leadership Team

IRG | ISG | Uehlein & Associates have substantial depth of experience in both legal and insurance claims disciplines. Our leadership team brings impressive credentials and track records in producing outstanding recovery results for our clients.


Hans A. Hagen

President and Chief Executive Officer
Rita Leazott

Rita Leazott


Carles Acton

VP and Manager, Subrogation

Arthur Gavrilles

Staff Counsel - Uehlein & Associates, LLC | VP and Manager, Second Injury Fund

Carrie Millier

Vice President and Manager, SIF Reimbursements

Our Professionals

Jennifer L. Carosi, CSRP, CCLA

Ms. Jennifer L. Carosi is a Subrogation Specialist with Insurance Subrogation Group, LLC (ISG) and Paralegal with Uehlein & Associates, LLC. She previously worked for Wright Group, Inc. Ms. Carosi received her Bachelor of Arts and Certificate of Paralegal Studies from Bay Path College. She also holds Certified Subrogation Recovery Professional and Legal Principles Claim Specialist designations.

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Louis E. Greenberg, Esq.

Mr. Louis E. Greenberg is an attorney with 22 years of experience and is the Director of Massachusetts Second Injury Fund Claims at Insurance Recovery Group, Inc. (IRG).  He manages the department and, as Account Executive, oversees IRG client accounts.  He coordinates and conducts file reviews, investigates and perfects second injury fund reimbursement, and negotiates claims with the Massachusetts Workers’ Compensation Trust Fund. He is also an attorney with Uehlein & Associates, LLC.

Previously, he practiced law with Uehlein, Cunningham & Machanic. Mr. Greenberg is a graduate of Boston University School of Law and the University of Michigan and is licensed to practice in Massachusetts.

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John A. Hebert, SCLA

Mr. John A. Hebert is Director of Transportation Recoveries specializing in multi-line subrogation claims with Insurance Subrogation Group, LLC (ISG).  Mr. Hebert is also a Senior Paralegal with Uehlein & Associates, LLC. He is a licensed adjuster in multiple states, specializing in automobile collision, Medical Payment, Personal Injury Protection (PIP), property and arbitrations before the Intercompany Arbitrations Forum.

Over his 15 years in the insurance industry, Mr. Hebert has handled auto damage and liability, personal injuries, general liability, and workers’ compensation, with a specialty in No-Fault/PIP coverage. He also handled catastrophe claims on commercial property after natural disasters.  He was previously a No-Fault Claims Specialist with Commerce Insurance Company (MAPFRE) and Liability Claims Specialist with Zurich.

He earned the designation of Senior Claims Law Associate (SCLA) through the American Educational Institute (AEI) and is a certified arbitrator with the Intercompany Arbitration Forums for the Automobile, Property, Med Pay, PIP & New York PIP forums.

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Nancy Lacroix-Britton, WCP®

Nancy Lacroix-Britton is a Second Injury Fund Specialist and Account Manager with Insurance Recovery Group (IRG). For more than twenty years she handled workers compensation claims for both insurance companies and third-party administrators including MEMIC Indemnity, Sedgwick, Specialty Risk/Hartford and AIG Claims Services. She was the Director of Marketing for Case In Point Investigations, and served on the board of the New Hampshire Adjusters Association, where she was elected President in 2013. She graduated from Southern New Hampshire University, and, in 2017, obtained the Workers’ Compensation Professional designation (WCP®) from AMCOMP.

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Dorothy M. Linsner, Esq.

Ms. Dorothy M. Linsner is an attorney with over 33 years of experience, specializing in second injury fund litigation. She is the Manager of Massachusetts Second Injury Fund Litigation with Insurance Recovery Group, Inc. (IRG) and an attorney with Uehlein & Associates, LLC. She is an Adjunct Professor of Research and Writing for the Massachusetts School of Law.

Previously, she practiced law with Uehlein, Cunningham & Machanic. Ms. Linsner is the author of various articles on second injury funds and was been appointed to the American Bar Association Task Force on Second Injury Funds. She is a graduate of George Washington University School of Law, and Georgetown University, and is licensed to practice in Massachusetts, Rhode Island, New York, and Washington, D.C.

Lavinio v. Transport Exchange, Commonwealth of Massachusetts, Department of Industrial Accidents, Board No.: 01480999 (2001)

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Kate Leahy, Esq.

Ms. Kate A. Leahy is staff counsel for Insurance Recovery Legal Associates and Insurance Subrogation Group, LLC (ISG). Ms. Leahy is a graduate of Framingham State University and Massachusetts School of Law. She has been working in the insurance industry since 2006, and has experience handling auto, property, and general liability claims. Prior to ISG, she worked as a claims adjuster at both Commerce and Hanover Insurance companies, and most recently managed the insurance program for the University of Massachusetts.

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Rich Londergan

Mr. Richard Londergan is a subrogation claims specialist with Insurance Subrogation Group, LLC (ISG). He began his insurance industry career with Commerce Insurance in 1990 as a Subrogation Specialist. His extensive claims experience includes handling auto, personal injury protection, bodily injury and, for the last 10 years, commercial general liability and property claims. Most recently Rich was employed with Chubb, Nationwide and Main Street America Group.

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Karen Merrow

Karen Merrow is a Claim Specialist for Insurance Recovery Group (IRG) and Insurance Subrogation Group, LLC (ISG) specializing in Second Injury Fund recoveries and Workers’ Compensation subrogation. For more than twenty years she has been a licensed Workers’ Compensation adjuster handling a multitude of jurisdictions and high profile accounts. She has worked for both insurance companies and third-party administrators including Royal and SunAlliance, MEMIC Indemnity, Sedgwick Claim Management Services and as a field adjuster for Interstate Adjustment Services.

Karen was appointed to 2 terms on the NH Department of Labor Appeals Board Advisory Committee. She also served 7 years on the New Hampshire Adjusters’ Association Board of Directors, being elected President in 2009. She graduated with a Bachelor’s of Science from Southern New Hampshire University and obtained the Workers’ Compensation Professional designation (WCP®) from AMCOMP in 2017.

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