Spouse (dependent) can enter before principal applicant (with COPR)?

(Re-posting here under new title)

My new question for the experts is the following:
Can my wife (dependent) enter to do “soft” landing ahead of me (the principal applicant)?
She will fly to see her mother in Vancouver, after a month she will go to Toronto and return a few days later. My plan is to drive to Toronto when she gets there, to “soft” land myself, for a few days, and drive back to the US together in our US registered car. Our sponsor (Parents/Grandparents program) is based in Ontario.
We have a lot of things to do here before we can move permanently.
Do you think there will be any issues with this plan?