Hach graduated from the University of Colorado at Boulder School of Journalism, and later worked as a research assistant at The New York Times Denver bureau and as a magazine editor at Sports and Fitness Publishing.
[1] A 1999 recipient of the Walt Disney Screenwriting Fellowship, Hach wrote the screenplay for the 2003 remake Freaky Friday with Leslie Dixon,[1][2] and both were nominated for a Saturn Award for Best Screenplay for the film.
[1][4][5] Legally Blonde also won the Laurence Olivier Award for Best New Musical.
In 2008 Hach participated as a judge on the MTV television series Legally Blonde: The Musical – The Search for Elle Woods, created to find a replacement for the lead actress then appearing in the musical on Broadway.
[1][6] Hach is the co-author (with Mary Rodgers) of Freaky Monday, a novel which was released by HarperCollins on May 5, 2009.