Romeo's first volume of poetry, "The Silent Dancing Spirit" was published in 1974. She taught for a year at Kent State in the Department of Pan-African Studies, but then decided to move to Africa and began working as an assistant English professor at the University of Liberia. In 1977, she married and continued teaching and writing, publishing three additional volumes of poetry: "Palaver: West Indian Poems" in 1978, "Two Faces, Two Phases" in 1984, and "Beyond Dream: The Ritual Dancer" in 1989. In 1984, Romeo-Mark, along with C. William Allen, Keith Neville Asumuyaya Best, Henry Gensang, Thomas Johnson and Ruth Wuor founded the Liberian Association of Writers (LAW). The couple lived in Liberia until 1989, when the civil war began. They then moved to London, where Romeo-Mark worked at the Fulham Cross Girls School, but her husband was unable to secure employment with his Swiss medical degree. In 1991, Mark was hired by the Basler Kinderspital in Basel and at the end of her school term, Romeo-Mark and the couple's three children joined him in Switzerland.