She is known for her novels The Big Love and Secrets to Happiness, and the ABC sitcom American Housewife, starring Katy Mixon.
Shortly afterward, she moved to Los Angeles, California, where she wrote for television series including Murphy Brown, Veronica's Closet, Spin City, and Bunheads.
[1] Dunn is also a novelist whose works include The Big Love (2005), Secrets to Happiness (2009), and The Arrangement (2017).
Dunn is a member of the all-female television writers group “The Ladies Room”, which also includes Vanessa McCarthy, Stephanie Birkitt, and Julie Bean.
In November 2020, it was announced that, after an "extensive" HR investigation that took place between the fourth and fifth seasons of American Housewife following allegations of a toxic workplace made by Carly Hughes, Dunn would no longer have an active producing role in the series.