[2][3] Adler began her career by working on a TV series named Veronica's Closet in 1997.

She was co-executive producer on various shows, including Life As We Know It, Women of a Certain Age, and Emily's Reasons Why Not.

Adler then joined the ABC series No Ordinary Family in May 2010 and in 2011 became a part of Glee's writing team starting with the third season.

[7] After two seasons, in 2017 Adler left Supergirl full-time to join The CW's reboot of Dynasty and sign a development deal with CBS Television Studios.

[8] In October 2023, Adler signed an open letter by Artists4Ceasefire to Joe Biden, President of the United States, calling for a ceasefire of Israeli bombardment in Gaza.