Ask the school which tuition category applies under its policies and applicable rules, using your actual status and residence history. TN does not automatically establish a domestic or in-state rate. Also budget for reviewing any work component and checking the conditions of employer tuition assistance.
Confirm the tuition classification in writing before committing
Assumptions about domestic, international, or in-state rates are frequently wrong for temporary workers, and the difference across a full program is substantial. Ask the registrar for the classification and the basis for it before paying a deposit. Where an employer offers tuition assistance, check whether the agreement includes a repayment clause tied to remaining employed, since that interacts with any later change of employer.
Credential documents, translations, and civil records tend to be needed more than once, at an extension, at a change of employer, or in a later application. A Canadian citizen may apply at a port of entry or preclearance, and an employer petition on Form I-129 carries the fee shown in the USCIS fee schedule. The most valuable expense is usually professional time spent reviewing the employer's written answers and shaping the support letter so that the agronomic work is unmistakable.
More spending does not cure a qualification mismatch or establish a licence needed for U.S. practice.