No. A spouse and unmarried children under 21 may hold TD status and study, but TD does not authorize employment. Household income needs and the principal’s transition do not change that rule.
Review relatives separately
Assess the spouse’s actual proposed activity and status rather than borrowing the principal’s work permission.
A spouse admitted as a dependant of a treaty professional may accompany, live and study, including a full degree programme, but may not take a job, and that includes remote work performed from the United States for a Canadian employer. Releasing a Canadian lease, resigning a position, declining a deferral and marrying all change the facts a later assessment must work from, and marriage ends the unmarried condition TD depends on whatever the child’s age. Some households manage the risk by having the Canadian business run day to day by an on-site manager, with the spouse holding only an ownership interest and taking distributions rather than a salary for services performed while present. TD status carries no work authorization at any point, so a partner holding it cannot take American employment, freelance, or continue working remotely for a Canadian employer from inside the country.