Use the real intended employment period and explain any uncertainty with the employer. A seasonal commercial deadline should not become a promised admission date or a reason to omit unfinished eligibility questions.
Separate weather and customer timing from immigration steps
Identify which dates are estimates and which terms the employer has committed to. Ask what changes if the season or contract shifts, and provide revised employment facts for review. Avoid buying travel on the assumption that an application must succeed because the work is time-sensitive.
Hypothetical example: A food-safety microbiologist is needed for a U.S. plant audit after a contamination concern, but the company has only a preliminary statement of work. The first review identifies what can be completed now: confirm the profession, obtain the degree and passport, and request a final letter specifying duties, employer, location, and proposed period. The signed audit scope and final letter settle whether the project is real rather than speculative. Do not buy nonrefundable travel until the employer has confirmed the actual role and the documentation is coherent. A frequent timing error is treating an urgent customer deadline as proof that the role qualifies. An eligible Canadian or Mexican professional may request TN during inspection or the employer may use the I-129 process, but neither route permits work for a U.S. undertaking the applicant owns or controls. Build a contingency date into the commercial plan and retain revised scopes for later review. Keep this TN timing record aligned with final filing facts and issued source materials, then preserve a dated copy internally before formal submission for future reference and review by responsible staff if questions arise later.