If your husband was a FL resident when the documents were drafted and signed, there shouldn't be a need for new documents. That being said, it may be a good idea to have TX documents drafted if that is where the documents will be used most often.
In any event, please use an attorney to draft the document to ensure proper language and execution.
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If your husbands documents were completed in FL and he was a FL resident he should be fine but I would consult an attorney to look into all the facts and circumstances.