Ultimately, this question is likely better posed to Ohio attorneys since it potentially invokes Ohio law, but that being said if the witness had persobal knowledge as to what he/she was testifying to then it does not sound like there is an issue. Good luck
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Corroborating witness to what? That he was a Ohio resident? Shouldn't be an issue. Since you say that it was the "final hearing," I'm guessing you had a Consent Agreement signed so this witness didn't impact anything, did he/she? Whatever the case may be, your divorce is in Ohio and you'd be best to post your question in the Ohio forums.
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