- Judge Boardman was a Magistrate Judge for the U.S. District Court of Maryland from September 2019 to June 2021, when she was confirmed to the U.S. District Court for the District of Maryland.
- Judge Boardman served as a Federal Public Defender for the District of Maryland from 2008 to 2019. She was appointed the First Assistant Public Defender in 2015.
- As a magistrate judge, Boardman ordered the Baltimore Police Department to release documents pertaining to the conviction of Malcom Bryant, who was convicted of murder and later exonerated by a DNA test.