If you and the father are amicable, I would suggest the two of you go to a mediator who is also a lawyer to discuss the possible parenting plans if your ex-husband moves. At 9, your daughter is really too young to have this burden on her -- and most judges will only strongly consider the opinion of an older child (at least teenager) anyhow.
If you are doing everything 50-50 right now, neither you nor the father are the primary custodial parent. All other things being equal then, a judge would likely be more inclined to have your daughter stay with you the bulk of the time instead of move with her father, and then see father on vacations and such. You will need to have your situation thoroughly reviewed with an attorney in your area if you want a more precise analysis because the standard -- the best interests of the child -- involves an intensive factual inquiry.
Best of luck.
This post is for informational purposes only. You should not construe it as a legal opinion on any specific facts or circumstances, and you should not act upon this information without seeking professional counsel. Publication of these materials and your receipt of them does not create an attorney-client relationship.
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