Heather Hach graduated from the University of Colorado at Boulder's 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. A 1999 recipient of the Walt Disney Screenwriting Fellowship, Hach wrote the screenplay for the 2003 remake Freaky Friday with Leslie Dixon, and both were nominated for a Saturn Award for Best Screenplay for the film. Hach wrote the libretto for the 2007 musical Legally Blonde, based on the Amanda Brown novel and the 2001 film of the same name, and was subsequently nominated for a Tony Award for Best Book of a Musical and a Drama Desk Award for Outstanding Musical. Legally Blonde Also won the Laurence Olivier Award for Best New Musical. In 2008 Hach appeared on MTV's Legally Blonde: The Musical – The Search for Elle Woods, a series created to find a replacement for the lead actress then appearing in the musical on Broadway.

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