Does a parenting coordinator's appointment expire, or does it need periodic renewal?

Whether and when a parenting coordinator's appointment expires is generally a matter of what the parenting coordination agreement itself says, rather than a fixed rule that applies to every arrangement. Many agreements are set up with a defined term, meaning the arrangement is expected to run for a set period and then either end or be renewed if both parents want to continue using the same coordinator, while others are left open-ended, continuing until one parent ends it or the underlying parenting arrangement no longer requires this kind of support.

Building in a defined term, with an option to renew, is a common approach because it gives both parents a natural checkpoint to assess whether the arrangement is actually working, rather than assuming it should continue indefinitely by default. If your agreement doesn't clearly address this, it's worth raising with the coordinator and the other parent, or having a family lawyer review and clarify the term, so everyone understands whether and how the appointment will end or be renewed rather than leaving it ambiguous.