Allow time for the hiring organization to produce a genuine written duty breakdown, which can take longer than expected if the role was posted generically. The overall filing timeline should not start until that breakdown and the degree comparison are both resolved.
Let the duty breakdown set the pace
Push for the written duty and supervision description early, since delays here directly delay everything after it. If the organization struggles to produce a clear breakdown, treat that as useful information about how well-defined the position actually is, not just an administrative holdup. Build the rest of the filing timeline once that foundational document exists.
Push for the written duty and supervision description in the first week, because everything downstream waits on it. Where the organisation struggles to produce one, treat that as information about how well defined the position actually is rather than as an administrative delay. Set the remaining milestones only once that document and the degree comparison exist: evaluation ordered, evaluation received, employer letter finalised, travel arranged.
A Canadian citizen may generally request TN admission at a port of entry, and an employer petition is an alternative with its own processing time, but neither compresses the preparation that has to happen first. Review the plan against what has actually arrived rather than what was promised.