[10][3] Over 11 years,[1] Gilmore Richardson worked in almost every position in her office, including Chief of Staff, before deciding to run for City Council in 2019.

[15] In 2021, Gilmore Richardson was appointed to the United States Environmental Protection Agency's Local Government Advisory Committee (LGAC).

[17] During the 2024, Philadelphia City Council inauguration, she made history as the youngest and first At-Large member to be elected to serve as Majority Leader.

[4] As of February 2020[update]:[18] Introduced in 2020, the Career and Technical Education Civil Service Preference legislation changed the Philadelphia Home Rule Charter to provide a five-point preference to qualified civil service applicants within three years of completing a School District of Philadelphia[19] Career and Technical Education (CTE) program.

She developed this guidebook with strong support from local unions, who have been active partners in her work to expand opportunities in the skilled trades.

Gilmore Richardson Said "This legislation will help more Philadelphians move into family supporting and sustaining careers by providing them with information about job training and educational opportunities when they may need it most.

"[21] In June 2020, Gilmore Richardson introduced a bill to require public hearings prior to adopting labor contracts, including the agreement with Fraternal Order of Police Lodge #5.

[27] In February 2023, Gilmore Richardson passed legislation amending The Philadelphia Home Rule Charter to change the requirements for contributions of the Budget Stabilization Reserve.

"[29] She called for a vaccination plan for teachers and stated, "As we near the one-year anniversary of the pandemic, getting children back into classrooms throughout the city is vitally important to their future.

[21] She also worked closely with the Administration to establish Community Evening Resource Centers (CERC), safe spaces for minors who violate curfew and young people seeking support, mentorship, programming and recreational activities.

[37] In March 2021, Gilmore Richardson and Councilmember Isaiah Thomas moved to transfer $1.3 million to support artists and art organizations from the City recession relief fund.