You need to ask the clerk of the court this question. They have the best handle on the law unless the "new" atty will answer the question.
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Given that you apparently have counsel, that is who should be addressing your concerns.
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Why wouldn't you ask your own lawyer this question? The Texas Rules of Civil Procedure do provide for a Motion to Substitute Attorney of Record when a party changes lawyers but a Court has the power to permit an attorney to make an appearance for a party at any time.
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