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The Law Office of Yvonne W. Rosmarin is a Massachusetts law firm dedicated to the protection of consumers against illegal practices by creditors, debt collectors, car dealers, credit bureaus, mortgage lenders and other businesses that ignore your rights. We take many cases on a contingency basis with no out-of-pocket fees for our services. Call us and tell us about your case. The law gives you, as a consumer, rights regarding your credit reports, using credit, buying a vehicle, dealing with debt collectors and much more. Some businesses ignore these rights. We put the law to work for you.

We realize that the amounts of money involved in consumer cases may be small, or even negligible, compared to those involved in other types of cases. However, to consumers who have been wronged, these amounts may represent a significant portion of their income. The illegal conduct may have caused considerable difficulties other than financial loss, as well.

We provide quality representation to consumers who have been victimized by unscrupulous and illegal business practices. We help consumers assert their rights and stand up to the businesses that have wronged them. Using consumer laws and regulations, we help to resolve consumers’ problems with businesses or companies that use unfair, deceptive, fraudulent or predatory business practices. In appropriate cases, we can file class action lawsuits where others have been treated the same way.

For example:

  • We understand that well-meaning consumers, who truly want to pay their debts, can find themselves in financial difficulty. They can be abused and maligned by debt collectors who do not care about their circumstances.


  • We recognize that your credit report is one of your most valuable assets, essential to credit, employment and insurance transactions in today’s financial world.


  • We know the tricks unscrupulous car dealers use in selling and leasing cars, and how easily they can take advantage of trusting consumers.

That is why we treat consumers’ problems comprehensively, looking at every possible angle. We apply consumer laws and regulations, empowering consumers and addressing the imbalance created by those who violate these laws. We put the law to work for you.

Yvonne has over 32 years' experience helping consumers, including seven years as an attorney with the National Consumer Law Center (NCLC) in Boston. She knows the practices and methods of the auto, debt collection and credit reporting industries, and the types of problems they can cause consumers on a regular basis. Yvonne has extensive experience using consumer protection laws to help individuals ripped off and harmed by these scams and practices, both in individual and class actions.

Before entering private practice, Yvonne trained other lawyers across the country in consumer law and served as a consultant on consumer cases at the NCLC. She was a participant in the national redraft of Uniform Commercial Code Articles 2 (sales of goods) and 9 (security interests in goods), representing the interests of low income consumers, and has been a Consumer Law Fellow to the Uniform Commercial Code Committee of the Business Law Section of the American Bar Association since 1996.

Yvonne  is the co-author of “Sales of Goods and Services” (2nd ed. 1989) a practice manual for lawyers on warranties, lemon laws and other consumer sales law, and she has written and spoken extensively on consumer law. She is also co-author of “Consumer Class Actions” (2nd ed. 1990 and 3rd ed. 1995).

Prior to joining the NCLC, Yvonne concentrated in consumer law and did extensive work on consumer class action lawsuits as an attorney for the Legal Assistance Foundation of Chicago.

Yvonne is a member of the National Association of Consumer Advocates, American Bar Association and has been elected to membership in the American Law Institute.


Languages spoken: French, English

Photos and videos

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Practice areas


  1. Litigation: 100%
    38 years


Payment types:

Cash, Check

Attorney endorsements

2 total 

Are you an attorney? Endorse this lawyer

  • Mildred N. Phillips

    I wholeheartedly endorse Attorney Rosmarin because she is excellent at what she does. I have consulted Attorney Rosmarin on several matters that I was working on and she was very helpful.


    Mildred Phillips Bankruptcy & Debt Attorney
    Relationship: Fellow lawyer in community

  • Ronald Lee Burdge

    I endorse this lawyer. I have known Yvonne for at least a decade and frankly if you have a consume law problem, then she is your answer. She knows the law extraordinarily well and cares deeply about justice and making sure her clients get the best answers to their legal questions so they can make the best decisions for themselves and their families. She is one of the very best. I highly recommend her to you.


    Ronald Burdge Lemon Law Attorney
    Relationship: Fellow lawyer in community

Contact info

58 Medford Street
Arlington, MA, 02474


ILVoluntarily Inactive197611/12/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Work experience
TitleCompany nameDuration
AttorneyLaw Office of Yvonne W. Rosmarin1995 - Present
Staff AttorneyNational Consumer Law Center1988 - 1995
AttorneyLegal Assistance Foundation of Chicago1978 - 1988
Law ClerkU.S. Court of Appeals - 7th Cir. - Hon. Luther M. Swygert, Judge1976 - 1977
Association namePosition nameDuration
American Bar AssociationConsumer Fellow - UCC Committee - Business Law Section1996 - Present
American Law InstituteMember1996 - Present
National Association of Consumer AdvocatesMember1994 - Present
National Conference of Commissioners on Uniform State LawsOfficial Observer - UCC Art. 9 Drafting Committee1993 - 1998
National Conference of Commissioners on Uniform State LawsOfficial Observer - UCC Art. 2 Drafting Committee1992 - 1999
Legal cases
Case nameOutcome
Barnes v. Fleet National Bank, N.A.Won appeal, settled for $12.5 million to the class
See all legal cases 
Publication nameTitleDate
Clearinghouse Review Journal of Poverty Law and PolicyRevising Article 2: Consumer Protections Needed in Sales of Goods1995
Consumer Class Actions, 3d ed.Consumer Class Actions, 3d ed.1995
William and Mary Law ReviewConsumers-R-Us: A Reality in the Article 2 Revision Process1994
Clearinghouse Review Journal of Poverty Law and PolicyStopping Defaults with Late Payments1992
Consumer Class Actions, 2d ed.Consumer Class Actions, 2d ed.1990
Sales of Goods and Services, 2d ed.Sales of Goods and Services, 2d ed.1989
School nameMajorDegreeGraduated
Syracuse University College of LawLawJD - Juris Doctor - magna cum laude1976
Ohio State UniversityFrench LiteratureBA - Bachelor of Arts - cum laude1972
Speaking engagements
Conference nameTitleDate
Preventing and Handling Data Security BreachesPreventing and Handling Data Security Breaches2010
Women’s Bar Association - Middlesex Committee MeetingConsumer Law . . . It’s More than Ch. 93A2009
Preventing and Handling Data Security BreachesPreventing and Handling Data Security Breaches2009
Data Security and Identity TheftData Security and Identity Theft2009
Training SessionDebt Collection Cases in Small Claims Courts2006
Training SessionConsumer Fair Debt Collection, Fair Credit Reporting and Auto Fraud & Warranties2005
Training SessionConsumer Credit Reporting2003
Training SessionConsumer Debt Collection and Credit Reporting2003
Training SessionConsumer Fair Debt Collection, Fair Credit Reporting and Auto Fraud & Warranty Rights2003
Secured Transactions ClassConsumer Rights and Representation under Revised UCC Article 92002
Preparing for Revised UCC Article 9,Preparing for Revised UCC Article 9,2001
Living with Revised UCC Article 9Living with Revised UCC Article 92001
Credit and Debt ClassConsumer Credit and Debt and the Consumer Credit Industry2001
UCC Articles 2 & 2A — Sales and Leasing of GoodsUCC Articles 2 & 2A — Sales and Leasing of Goods2000
UCC Article 9 in 2001: Are You Ready?UCC Article 9 in 2001: Are You Ready?2000
Preparing for Revised UCC Article 9Preparing for Revised UCC Article 92000
Credit and DebtConsumer Credit and Debt and the Consumer Credit Industry1999
If You Are Going to Dabble, Do It RightConsumer Law Overview1998
UCC Article 2A: Personal Property LeasingUCC Article 2A: Personal Property Leasing1997
Spring MeetingThe New Article 2 – How It Will Work in Practice1997
Annual MeetingAttorney’s Fees in and Around the UCC1995
Training EventBasic Consumer Law1994
Consumer Rights Litigation ConferenceAutomobile Warranty Cases: Litigation Approaches1994
Training EventBasic Consumer Law1993
Joint Conference on Law and AgingDefending Hospital and Doctor Debt Collection Suits1993
Consumer Rights Litigation ConferenceLemon Law Car Cases on a Contingent Fee1993
Training EventBasic Consumer Law1992
Spring MeetingThe Twain Shall Meet: Balancing Consumer Concerns and Business Interests Under the UCC1992
South Carolina Bar Consumer Law Section MeetingClass Action Lawsuits1992
SeminarWarranties in the Sale of Goods1992
Consumer Rights Litigation ConferenceUnfair and Deceptive Acts and Practices Claims1992
National Legal Aid and Defender Association Substantive Law ConferenceWarranties; Repossessions; Hospital Collection Defenses1991
Training ProgramConsumer Law1990
SeminarClass Actions -- Working Up a Case1990
National Legal Aid and Defender Association Substantive Law ConferenceWarranties; Repossessions1989
SeminarStrategies for Dealing with Automobile Cases1988