Yes. A spouse admitted in dependent status under this category is employment-authorized incident to that status, evidenced by the annotation on the Form I-94 issued on admission, and may work for any employer or independently. Unmarried children under twenty-one may study but may not work.
The dependent spouse is not tied to the family business
A spouse who has no wish to work at the lodge is free not to, and a spouse who wants to teach, nurse, code or open something unrelated may do so without applying for a separate document. Employers ordinarily ask for the annotated arrival record during onboarding. Her own nationality does not affect dependent eligibility, so Canadian permanent residence rather than citizenship changes only whether she needs a visa before travelling.
Two features of this category shape a household's planning. Periods of admission are renewable for as long as the enterprise continues to qualify, so families do stay for many years, but nothing about that accumulates into permanent residence, and there is no direct path to it. And a child reaching twenty-one loses dependent eligibility and needs a status of their own, which in practice should be arranged in the year before the birthday rather than after it.