[3][4] In 2009, Stintz was one of the leaders of the Responsible Government Group centre-right caucus on City Council which opposed the policies of Mayor David Miller.

To deter graffiti, Ward 16's youth were recruited to create murals in the Anne Rawson Laneway, Duplex Parkette and Eglinton Park field house.

Miller said "I know a group of you went up to see the minister and... asked for a $25,000 grant in order to study political parties in the city of Toronto,".

Stintz later produced a document addressed to Municipal Affairs Minister Jim Watson and titled, Next Steps for the Strong Mayor Model in the Toronto Context.

"[14] In 2010, Stintz was appointed to the position as chair of the Toronto Transit Commission with the support of Mayor Rob Ford.

[18] A new position of "TTC Station Manager" was created to improve accountability to customers [19] while more next vehicle arrival screens and debit and credit card payment systems were made available.

[20] In addition, a suicide prevention program was launched with the help of Toronto Distress Centres and Bell Canada [21] and she oversaw the approval of Presto's introduction to the TTC.

[25][26] By agreeing to a new benefits package, and reducing administrative staff, an additional $18.5 million was saved while Stintz served as Chair.

[26][27] By successfully contracting out bus and washroom cleaning services and leasing the Toronto Coach Terminal, a further $4.9 million was saved.

Afterward, she revealed her true identity to those employees, that she understood and valued their work, and their ideas on how TTC riders could help them.

[36] Some of her proposals are a "downtown relief subway line, reform the land transfer tax, [and] a joint Toronto-U.S. bid for the 2026 World Cup and explore a 'hybrid' solution for the eastern part of the Gardiner Expressway.

[38] In late August 2014, after withdrawing from the mayoral election, Stintz expressed interest in becoming commissioner of the Canadian Football League.