Johnson acknowledged in federal court last month that she destroyed a $100,000 check from a developer and stuffed nearly $80,000 dollars of illicit cash into her underwear as federal agents knocked on her door.
The investigation was part of a federal corruption probe involving Johnson's husband, former Prince George's County Executive Jack Johnson.
Soon after her guilty plea, she submitted a letter of resignation, effective July 31. Her fellow council members called for her resignation immediately, however, and voted to effectively shut down Johnson's office.
Despite the council's vote to strip her of county resources, Johnson did vote on several nominations at the County Council meeting Monday. Her sentencing is set for October 13th.