[2][citation needed] From 1971 to 1976, Kreamer was an English and creative writing teacher at Bel Air High School.
She conducted a solo general civil practice of law in Harford and Cecil Counties for fourteen years, until she was disbarred in 2008.
[2] She represented the County Council to the Northeast Regional Waste Authority and the Board of Estimates.
Kreamer was elected to the Maryland House of Delegates for two four-year terms, representing District 34, Harford County, from 1983 until 1991.
Kreamer had multiple attorney grievance complaints filed against her, which ultimately led to her disbarment in 2008.
[11] In 1994, Kreamer ran for lieutenant governor in the Democratic Primary with state senator Mary Boergers of Montgomery County in the “first all-female top ticket” in the nation.
In 2002, Kreamer ran for District E of the Harford County Council to represent Aberdeen, Churchville, Hickory and Fountain Green.
[16] In 2014, when Slutzky vacated his seat, Barbara Kreamer was the Democratic nominee for District E, now Aberdeen, Churchville and Fountain Green.