She resigned in December 2019 in advance of a federal indictment for wire fraud and bribery to which she pleaded guilty in January 2020.

She graduated from Western High School in 1969, the Community College of Baltimore County (paralegal studies) and the George Meany Institute (labor relations).

She became the Political Director of and lobbyist for the Mid-Atlantic Regional Council of Carpenters, (2004- ) after serving as President of the City Union of Baltimore, 1988–96.

According to the Baltimore Business Journal, "In charging documents, federal prosecutors allege that from at least March 2, 2018 through Feb. 11, 2019, Glenn 'defrauded the citizens of Maryland' by soliciting and accepting monetary bribes to affect, advocate for and vote on certain bills relating to opioid treatment clinics, liquor licenses and the expansion of the state's medical marijuana industry.

[15] In January 2021, she was released from prison to serve the rest of her sentence, scheduled to expire in June 2022, in home confinement.