After graduating from university, she worked for two years as an assistant editor for Catholics United for the Faith in New York City. Three years later - in 1997 - she released her first novel, Snow White and Rose Red: A Modern Fairy Tale. In 2002, it was republished under the title The Shadow of the Bear. Its sequel, Black as Night, was published in 2004. In 2012, her manga biography of Pope Benedict XVI, Habemus Papem: Pope Benedict XVI, was published by American publisher Manga Hero. Along with Rebecca Bratten, Doman co-authored Catholic Philosopher Chick Makes Her Debut, published also in 2012.