Review the new employer and terms before relying on the earlier preparation or permission.
Update the actual proposal
Do not assume an assessment follows the applicant to every job with the same title. Determine the process needed for the changed facts instead of reusing a letter from the declined employer.
A Canadian citizen can apply at a port of entry on the day of travel if the letter and credentials are complete, but the preparation — fixing the duty description, obtaining transcripts and resolving self-employment questions — typically takes several weeks. Use that deadline to obtain the acquirer's written confirmation of your employer and duties, so any necessary new letter or petition is ready in time rather than assembled during a delay at a port of entry. The practical sequence is to settle the engagement terms, make the corporation’s support letter consistent with the client evidence, assemble the credential and experience records, and then present the application. In parallel, the offer letter usually needs revision: human-resources departments write to internal templates, and the first draft rarely uses the language the listed profession requires. Employment letters from former employers, certified credentials and a properly drafted offer letter are the slow parts, and an advance petition adds processing time that varies. Because the employer's offer will be conditional on licensure, this is the item that most often moves a planned start date, and it should be begun as soon as the board permits rather than after an immigration question is settled.