This is possible only if you're reasonably certain that you'll be able to apply for AOS (I-485) AND get EAD before your TN expires. Otherwise, you'll run into i

This is possible only if you're reasonably certain that you'll be able to apply for AOS (I-485) AND get EAD before your TN expires. Otherwise, you'll run into issue renewing your TN as submission of I-140 proves that you have intent to remain in the US permanently.