Karen S. Karlin

Ms. Karlin is a partner and shareholder at Armstrong, Donohue, Ceppos, Vaughan & Rhoades. Ms. Karlin’s practice focuses on the defense of health care providers in complex medical malpractice cases, and she has litigated cases in both state and federal courts in Maryland and the District of Columbia.  In addition, she has briefed appeals before the Supreme Court of Maryland, the Appellate Court of Maryland, and the District of Columbia Court of Appeals. Ms. Karlin also represents health care providers before professional licensing boards in Maryland and the District of Columbia.

Prior to and during law school, Ms. Karlin worked as a legal reporter in Washington, D.C. for two law report publishing companies. Following graduation from law school, Ms. Karlin was a judicial law clerk for the Honorable Richard A. Levie in the Superior Court of the District of Columbia. Ms. Karlin entered private practice in 1995, practicing in the field of insurance defense litigation. She was a Partner at Hamilton Altman Canale & Dillon and Gleason, Flynn, Emig & McAfee, before joining Armstrong, Donohue, Ceppos, Vaughan & Rhoades in 2019. She has participated in numerous reported opinions from the District of Columbia Court of Appeals and the Appellate Court of Maryland relating to diverse legal issues.


  • Georgetown University Law Center, J.D., 1994
  • University of Connecticut, B.A., 1987

Practice Areas

  • Medical Malpractice Defense
  • Professional Liability Law
  • Litigation
  • Appellate Practice

Professional Organizations

  • District of Columbia Bar Association
  • Maryland State Bar Association
  • Bar Association of Montgomery County, Maryland

Admitted to Practice

  • Maryland
  • District of Columbia

Bar Admissions

  • Supreme Court of Maryland
  • District of Columbia
  • District of Columbia Court of Appeals
  • United States District Court for the District of Columbia
  • United States Supreme Court
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