Nell co-wrote the score to Legally Blonde, the Musical with composer Laurence O'Keefe, which received Tony Award nominations, Drama Desk nominations, and the Olivier and Helpmann Awards for Best Musical.
Nell's play, The Explorers Club, won the Outer Critics Circle Award for Outstanding Off-Broadway Play, the Edgerton Foundation New American Plays Award, and an Alfred P. Sloan Foundation grant.
Nell has written book and/or lyrics for Pirates! (or Gilbert and Sullivan plunder'd), Sarah, Plain and Tall, Cam Jansen (Drama Desk-nominated), I Want My Hat Back, How I Became A Pirate, The Mice, Life of the Party and Because of Winn Dixie.
She is working on musical adaptations or Dave, Gotta Dance, and Mean Girls.
Television writing includes Unhappily Ever After, Animal Planet's Whoa! Sunday with Mo Rocca and the new Electric Company.