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I recommend reviewing your post nuptial agreement to determine who was legally responsible for preparing and submitting the qdro. If it was your responsibility to complete then I would recommend contacting your prior attorney, or a new one, in order to have it completed with your employer. If it was the responsibility of your ex then you should contact her in writing to advise it was not completed and that she needs to take all steps in order to finalize the same immediately or you will have to seek sanctions for failing to complete her obligation.