From 2002 to 2005, Marriott served with her husband while he was president of the church's Brazil São Paulo Interlagos Mission.

In 2013, Marriott was called as the second counselor to Bonnie L. Oscarson in the Young Women general presidency.

[5][6] Marriott was also one of the church's representatives announcing a bill incorporating these principles being introduced to the Utah legislature in March 2015.

[7] In 2018, she presented at the International Center for Law and Religion Studies conference a talk entitled, What Can a Lay Person Do to Protect Religious Freedom?

and spoke about her father, a judge, attorney, and member of the board at the First Methodist Church in Alexandria, Louisiana.