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About Me


Ms. Rosenberg focuses her practice on attorneys’ professional responsibility concerns, including Disciplinary Board matters, Pennsylvania Lawyers Fund for Client Security inquiries, bar admission issues, fee disputes, and legal malpractice.  She also advises lawyers and firms on ethics compliance and provides expert opinions in legal professional liability matters. Previously, she served as disciplinary counsel, prosecuting attorneys for violations of the Rules of Professional Conduct. She also participated in rule drafting, including the 2008 amendments to Pa. RPC 1.15 and Pa.R.D.E. 221 and coauthored articles and the chapter of the 2011 Pennsylvania Ethics Handbook relating to handling of funds.



Ms. Rosenberg is an active member of Philadelphia Bar Association Committee, that Association’s Professional Guidance Committee, the Pennsylvania Bar Association Committee on Ethics and Professional Responsibility and Professional Liability Committee, and the Association of Professional Responsibility Lawyers.  For twenty-five years, she has regularly planned and presented continuing legal education courses relating to ethical issues and professionalism.  She has also taught Trial Advocacy and Professional Responsibility as an adjunct and guest lecturer in local law schools.  Prior to serving as disciplinary counsel, Ms. Rosenberg was a public defender, public interest lawyer, and sole practitioner. Ms. Rosenberg received her A.B., cum laude, from Bryn Mawr College and was awarded her J.D. from Yale Law School.



Practice Areas


  1. Ethics & Professional Responsibility: 95%
    35 years, 500 cases
  2. Personal Injury: 5%
    8 years, 5 cases

Attorney Endorsements

1 total 

  • Jennifer L. Ellis

    I have known Barbara for many years. She is a top quality ethics lawyer, to whom I would happily send clients if they were in need.


    Jennifer Ellis Ethics & Professional Responsibility Attorney
    Relationship: Fellow lawyer in community

Contact Info

1060 First Ave
Suite 400
King of Prussia, PA, 19406



Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Work Experience
TitleCompany NameDuration
OwnerLaw Office of Barbara S. Rosenberg2007 - Present
Disciplinary CounselOffice of Disciplinary Counsel, PA1981 - 2007
Association NamePosition NameDuration
PBA Solo & Small Firm SectionCouncil2013 - Present
Philadelphia Bar AssociationCo-Chair, Professional Responsibility Committee2008 - 2012
Philadelphia Bar AssociationCommittee on Professional Guidance2007 - Present
Pennsylvania Bar AssociationLegal Ethics & Professional Responsibility Committee2007 - Present
Association of Professional Responsibility LawyersMember2007 - Present
Philadelphia Bar AssociationMember2007 - Present
Pennsylvania Bar AssociationMember2007 - Present
Legal Cases
Case NameOutcome
Matter of WeissReinstated
See all Legal Cases 
Publication NameTitleDate
Chapter 5 - Property Held for Clients and OthersPA Ethics Handbook2011
School NameMajorDegreeGraduated
Bryn Mawr CollegeN/AABN/A
Yale Law SchoolLawJD - Juris DoctorN/A
Speaking Engagements
Conference NameTitleDate
Solo and Small Firm ConferenceEthics for Solos2013
Fee Practices Pointers and TrapsEthics2013
Family Law PracticeEthics Issues for Family Law Practice2012
EthicsAvoiding Pitfalls of Handling Funds2012
DUIEthics Issues in the Criminal Practice2012
EthicsHandling Funds2011
Ethics PotpourriHow to Avoid Ethics Traps2010
Contempt of CourtEthical Issues Relating to Contemptious Conduct2010
EthicsConflicts of Interest in Joint Representation2009
Family Law PracticeEthics for Family Lawyers2006
Litigation PracticeEthics Issues in Litigation Practice2004
Ethics PotpourriSuccession Planning for Solo Practitioners2003
The Silent VictimRepresenting Estates and Incapacitated Persons in Litigation1997
EthicsEthical Issues in Your Practice1987