Mr. Tsourakis is correct; if the court granted an extension, they your ex-spouse has more time than the statutory period. The rules allow for the court to grant an extension.
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I think you need to file an objection based on timeliness and motion to dismiss the appeal as untimely. The grant of the extension may go back to the appeal deadline or it might just go to the automatic time from a notice to perfect the brief. Just because there is a statute of limitations on an appeal, if you don't raise it you waive it. There are times an appeal notice is not due 30 days after a decree is entered. One is when attorney fees are still pending. Another is when the appealIis actually accepted as a special action. There may be other exceptions. I hope this helps.
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They have not necessarily "allowed" her to file the Appeal. Anyone can file an untimely notice of Appeal, and then the other side should let the Court know that it was untimely. Under the circumstances you have described, i would expect a Motion to Dismiss would be successful.
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