My current employer filed for a TN renewal/ extension and the HR received I-797. I was interviewing for other jobs as well and I have an offer now. This new employer wants to file for TN as well but under a different NAFTA category as it is senior role, and they want to use the I 129 premium processing route. Their attorney said that it will not affect my existing renewal application with the other employer and they will not be notified of the new application. I am unsure if that is the case. What are the implications of having two concurrent I 129 applications ? Any input is greatly appreciated.