Do not assume the signature grants immigration permission. Review the actual employment and required process before starting.
Keep changes visible
If duties or entities change after signing, assess the revised arrangement rather than relying on the original label.
Before starting, compare the finalized employer, duties, duration, supervision, and location with the case that was prepared, then obtain advice if a material fact has changed. If authorization is needed, its route and timing depend on the actual facts; do not promise the organization a start date until those steps and the effective permission are clear. Starting both as early as the bodies permit, and running them in parallel rather than in sequence, is the single most effective thing a nurse can do about the timeline. A Canadian citizen can apply at a port of entry on the day of travel, but redrafting the offer, obtaining transcripts and restructuring a contractor arrangement into employment are what consume the calendar. An updated employer letter, a current licence and any change in the role all take time to assemble, and a lapse in the licence or a gap in the employment record is much harder to remedy close to the deadline.