You have an order. It works, or at least it functions. Now the other parent has filed to change it. The good news is that the law is structurally on your side — the burden is entirely theirs, and most modification petitions fail on the threshold rather than on the merits. The bad news is that defending well means proving a negative, and that takes preparation rather than indignation.
The burden is theirs, and it is a real one
A parent seeking to modify a parenting plan must establish two things, in order:
- A substantial and material change in circumstances that has occurred since the last order; and
- That the modification they want is in the child’s best interests under the section 61.13(3) factors.
Both are required. If the first fails, the court never reaches the second — which is why the threshold is where most defences are won. Florida courts have long described this as an extraordinary burden, and the policy reason is simple: children benefit from stability, and a judgment that can be reopened whenever a parent is dissatisfied is not a judgment at all.
The 2023 legislation did remove the older requirement that the change also be unanticipated. That lowered the bar, and you will hear it invoked. It did not remove the requirement that the change be substantial, material, and subsequent to the last order — and those three words carry the defence.
What is not a substantial change
The most effective defences are usually the simplest. A petition tends to fail where the alleged change is:
- Something that already existed when the order was entered. A circumstance the court knew about, or that was argued and rejected, is not a change. Pull the prior pleadings and the transcript — parents routinely re-file the case they already lost.
- Foreseeable and ordinary. A child getting older, starting school, or developing new activities. A modest pay rise. A new partner. Life proceeding as expected is not a change in circumstances.
- Temporary. A three-month posting, a short illness, a gap between jobs. If it has resolved by the hearing, there is nothing to modify around.
- Self-created. A parent who quits a job, moves away voluntarily, or engineers the difficulty they now complain of. Courts are unsympathetic, and a voluntary income reduction invites imputation rather than relief.
- Parental preference dressed up. Dislike of the schedule, regret about what was agreed at mediation, or a desire to reduce support. Regret is not a change in circumstances.
- About the parents, not the child. Friction between adults is not itself a basis to move a child, and the statute weighs the willingness of each parent to foster the other’s relationship.
What usually does qualify — so you know what you are facing
An honest assessment matters more than a hopeful one. Courts have found a substantial change where there is a genuine relocation, a sustained and involuntary change in a parent’s availability, documented substance abuse or violence arising since the order, a material deterioration in the child’s functioning traceable to the arrangement, a parent’s repeated failure to exercise their time-sharing, or a persistent pattern of obstructing the other parent’s contact.
If one of those is genuinely present, the sensible strategy is usually to shape the outcome rather than resist it wholesale — conceding the threshold while contesting the remedy often produces a far better result than a defence the court disbelieves.
The facts that actually decide it
Modification hearings turn on records, not recollection. The material that wins:
- A contemporaneous calendar of exchanges as they actually happened — who had the children, who was late, who cancelled. Built as you go, not reconstructed the week before the hearing, which judges can always tell.
- The complete message thread, not the excerpts that favour you. Selective screenshots are the single fastest way to lose credibility, because the full thread is coming into evidence anyway.
- School and medical records showing attendance, punctuality, grades and appointments across the period in question. If the child is doing well under the current plan, that is your best evidence and it is documentary.
- Proof of your own compliance, including support paid on time. A respondent with clean hands is in a different position from one who is also in breach.
- Third-party witnesses with actual knowledge — teachers, coaches, doctors. Family members who have only heard your account carry very little weight.
Conduct during the case is evidence too. Disparaging the other parent to the children, obstructing contact, or recruiting the children into the dispute damages you more than any single fact in the petition.
Procedural defences worth checking first
Before the merits, some petitions have problems on their face: service and notice defects; the wrong court, where the UCCJEA leaves modification jurisdiction with another state; a petition that pleads conclusions without the specific facts said to constitute the change; or a matter already litigated and decided, where the prior ruling forecloses relitigating the same circumstances. Where an emergency or ex parte motion has been filed, the standard is genuinely narrow — imminent risk of harm or removal from the state — and motions that do not meet it are routinely denied.
Fees, and the cost of a meritless petition
Section 61.16 allows fee awards based on one party’s need and the other’s ability to pay, and courts can also consider whether litigation was pursued in bad faith or to harass. A parent who files repeated, unfounded petitions can end up paying for both sides. That will not stop a determined litigant, but it changes the arithmetic — and it is worth raising early rather than after the third petition.
How we defend these
The order of work rarely changes. We read the last order and the prior record first, because the strongest defence is usually that the court already considered this. We test the petition against the threshold and, where it fails, move to dismiss or frame the hearing around that single question rather than trying the whole family history. We assemble your documentary record early, so the case rests on paper rather than on who is more persuasive on the stand. And we give you an honest read on whether the threshold is likely to be met — because if it is, the money is better spent shaping the new plan than resisting the inevitable.
If you are the parent seeking a change rather than opposing one, see custody and parenting plan modification. For how time-sharing is decided in the first instance, see time-sharing and custody.
Defending a modification: FAQs
Attack the threshold first. The other parent must prove a substantial and material change in circumstances since the last order before the court will even consider best interests. Most petitions fail there — because the alleged change already existed, was foreseeable, is temporary, or is something the filing parent created. Build a documentary record showing the current plan is working, keep your own compliance spotless, and resist the urge to litigate the whole relationship.
It has to be significant, material, and to have arisen since the last order. Genuine relocation, a sustained involuntary change in a parent’s availability, substance abuse or violence arising after the order, a real deterioration in the child’s functioning, or a parent repeatedly failing to exercise their time-sharing can all qualify. A pay rise, a new partner, a child getting older, or simple dissatisfaction do not.
Somewhat, and you should expect it to be argued. The legislation removed the older requirement that the change also be unanticipated. What it did not remove is the requirement that the change be substantial, material, and subsequent to the last order, nor the separate best-interests showing. The threshold is lower than it was; it is not gone.
Substantially. A circumstance the court already considered is not a change, and a matter already litigated and decided generally cannot be relitigated on the same facts. Get the prior pleadings, the order and, if one exists, the transcript. Repeat filings on the same grounds also support a fee award and an argument that the litigation is being used to harass.
No. Preference, regret about a mediated agreement, or friction between the parents is not a substantial change in circumstances. The question is whether something material about the children’s circumstances has changed — not whether an adult has changed their mind. Petitions built on dissatisfaction generally fail at the threshold.
Start today, because contemporaneous records beat reconstructions. Keep a dated calendar of every exchange as it happens. Preserve complete message threads rather than screenshots of favourable extracts. Request school attendance and grade records and the children’s medical history. Keep proof that you have paid support on time and complied with the order. Identify teachers, coaches or doctors with direct knowledge of how the children are actually doing.
Possibly. Section 61.16 permits fee awards based on need and ability to pay, and courts may also consider whether a party litigated in bad faith or to harass. A parent who files repeated unfounded petitions can be ordered to pay both sides’ fees. Raise it early rather than after several rounds — the prospect of a fee award changes behaviour more reliably than the award itself.
Take it seriously, but know the standard is narrow: essentially imminent risk of physical harm to the child, or imminent removal from the state. Emergency and ex parte motions built on anything less are routinely denied. Respond immediately and in writing, do not violate the existing order in the meantime, and get counsel involved the same day — these are decided fast and on limited material.
This page is general information about Florida law as of its last review and is not legal advice. Modification outcomes depend on facts a page cannot know. Citations are to sections 61.13, 61.13001 and 61.16, Florida Statutes, and to the UCCJEA.