Before she went into pictures she was known for being one of the most distinguished stage authors in the United States, writing Broadway hits such as The Builders (1907), The Chaperon (1908), The Talker (1912), A Modern Girl (1914), In 1915 The Lasky Feature Play Company entered into a contract with Fairfax.

This opportunity gave Fairfax the chance to work under William C. deMille who is known as the author for many successful plays such as "The Warrens of Virginia" and "The Woman."

During her time there she wrote the scripts to multiple successful photoplays such as The Clown, The Honor of His House, The Valley of the Giants, The Westerner, The Sowers, The Immigrant and many more.

With a new production company at her disposal Fairfax began working on a highly anticipated film called The Lying Truth which starred Marjorie Daw, J. Pat O'Malley, Noah Beery, Sr., and her husband the actor Tully Marshall.

At the time Fairfax was one of the most accomplished playwrights in New York Theater and an author scenarist, editorial and production supervisor of film plays.

[6] Not long after her separation from First National Picture Inc. Fairfax formed an alliance with Sam E. Rork that would cut the production cost for two producers working together.