How i get legal for visa my old employer before...

Please kindly note that, according to the UAE labor law, the employer must change even at the end of the work contract, as well as the residence law. In the absence of any notification to the labor contract and the provisions of the UAE labor law and the sponsor of the employer placing the name on the ban list by submitting a flight notification that can be removed immediately By going to the labor office, submitting the complaint, and proving the two pictures of the communication and its affiliation to remove it, then the work can be changed and transfer of the sponsorship without the need for no objection, and to obtain a new visa, the previous visa must be canceled and the matter will be known to the Ministry of Labor. Thank you