The two went through with court paperwork a full year after they announced that they were separating.
Duff's rep released the following statement at the time of their split:
"They remain best friends and will continue to be in each other's lives. They are dedicated to loving and parenting their amazing son, and ask for privacy at this time."
Per the court documents, Comrie and Duff will share joint legal and physical custody of their son Luca.