Rule 3.204.Proceedings Affecting Children
Subchapter 3.200 — Domestic Relations Actions · Last verified September 5, 2026
Full Text of Rule 3.204
Plain-English Summary
MCR 3.204 is the rule that stops a family from being split across courtrooms. When a circuit court is already handling child support, custody, or parenting time for these parents, or holds continuing jurisdiction from an earlier action, this rule tells a party where the next dispute goes and lets the court pull the resulting orders together. Everything in subrule (A) yields if the court orders otherwise for good cause.
Motion or new complaint
Subrule (A)(1) draws the line by relief. A new demand about the support, custody, or parenting time of the same child must be filed as a motion in the earlier action if the relief sought would have been available in the original cause of action. If that relief was not available there, it must be filed as a new complaint.
A different child of the same parents
Subrule (A)(2) sends a new action about a different child of the same parents to the same county as the prior action, provided the circuit court for that county has jurisdiction over the new action, and directs that the new case be assigned to the same judge who had the previous one.
Subrule (B) handles the harder version of that question, where more than one circuit court action is pending or more than one circuit court has continuing jurisdiction. A complaint for the support, custody, or parenting time of a different child of the same parents goes to whichever circuit court has jurisdiction to decide the new action. If more than one of the previously involved courts qualifies, or the action could be filed in more than one county within a circuit, the tiebreakers run in order:
- the county of a prior action involving the parents' separate maintenance, divorce, or annulment;
- failing that, the county of the circuit court that issued a judgment affecting the majority of the parents' children in common;
- failing that, the county of the circuit court that issued the most recent judgment affecting a child of the same parents.
One order instead of many
Subrule (A)(3) states the ambition plainly: whenever possible, all actions involving custody, parenting time, and support of children of the same parents are administered together. Unless the court finds good cause not to, a final order in a new action involving a new child must consolidate the custody, parenting time, and support provisions for that child and for any children named in previous actions over which the court has jurisdiction. The order has to reference the other cases and say that it supersedes their custody, parenting time, and support provisions.
The same subrule permits the court to modify those preexisting provisions in the new action, but only where the modification is supported by evidence presented in the new case and both parents have had an opportunity to be heard about the proposed changes.
Subrule (C) offers an administrative route to the same tidiness. The court may enter an order consolidating the custody, parenting time, and support provisions of multiple orders when the cases involve different children of the same parents and all other parties are the same, or when more than one action involves the same child and parents. That order also must reference the other cases and state that it supersedes their provisions.
A voice for the child
Subrule (D) lets the court, on a party's motion or on its own initiative and for good cause shown, appoint a guardian ad litem to represent a child in a custody dispute, and assess the costs and reasonable fees against the parties in full or in part.
Frequently Asked Questions
Do I file a motion or a new complaint to change custody in Michigan?
Subrule (A)(1) turns on the relief. If the relief sought would have been available in the original cause of action, the new action about the same child must be filed as a motion in the earlier action. If that relief was not available there, it must be filed as a new complaint.
Where do I file a case about a second child of the same parents?
Subrule (A)(2) sends it to the same county as the prior action if that circuit court has jurisdiction, and requires assignment to the same judge who handled the previous action. When more than one court is already involved, subrule (B) applies its ordered tiebreakers.
Can the judge in the new case change the orders in the older cases?
Yes, within limits. Subrule (A)(3) allows the court to modify custody, parenting time, and support provisions in preexisting orders involving another child of the same parents, but only if the modification is supported by evidence presented in the new case and both parents have had an opportunity to be heard on the proposed modifications.
What if two circuit courts both have jurisdiction over the new action?
Subrule (B)(1) sends it to the same county as a prior action involving the parents' separate maintenance, divorce, or annulment. If there is no such action, subrule (B)(2) points to the county of the court that issued a judgment affecting the majority of the parents' children in common, and failing that, the county of the court that issued the most recent judgment affecting a child of the same parents.
Can the court consolidate multiple family orders on its own?
Subrule (C) allows an administrative consolidation order when the cases involve different children of the same parents and all other parties are the same, or when more than one action involves the same child and parents. The order must reference the other cases and state that it supersedes their custody, parenting time, and support provisions.
Who pays for a guardian ad litem in a custody dispute?
Subrule (D) lets the court assess the costs and reasonable fees against the parties involved, in full or in part. The court may appoint the guardian ad litem on a party's motion or on its own initiative, for good cause shown.