If she's graduating from high school in the spring of 2016, and if there is no emergency, such as child neglect or abuse, you may not have time enough to file a motion and litigate it to conclusion, given the caseload and scheduling of your particular court.
If she's currently has another year or so before she graduates, and, again, if there is no emergency, you will need to file a petition with the court to modify the custody orders in your divorce decree or current custody orders. You may want to check the Utah court self-help forms to get a feel for what would be required: https://www.utcourts.gov/selfhelp/
Cathy Naugle, MERRIS & NAUGLE, PLLC, Boise ID.
Answered on Jan 11th, 2016 at 4:46 PM