The spouse and unmarried children under twenty-one may accompany. The spouse is employment-authorized incident to status; children may study but may not work, and derivative status ends at twenty-one.
Pay the spouse properly if she works in the business
The spouse's authorization is broad and does not depend on the enterprise, which matters in the first years of a dealership where cash is committed to inventory rather than to salaries. If she works in the business, the role should be paid and recorded in payroll properly rather than treated as an informal contribution. Children may attend school at any level and may not work, including in the family business during school holidays. Their status ends at twenty-one, and treaty investor status does not itself lead to permanent residence, so a household intending to remain indefinitely needs a separate route identified early rather than a series of renewals assumed. Write the family out as a list with dates of birth and intended activities before the transaction is structured, not afterwards.
Hypothetical example: a mobile bicycle-repair business is being purchased by one spouse, while the other hopes to work for a separate local retailer. The first review should identify the principal investor, the legal ownership, each dependant's civil documents, and the activities each person plans after admission. Marriage and birth records settle the relationship; the investor's documents settle the enterprise; a promised job does not decide status. Put the family's work plans beside school and travel dates before choosing who will be principal. The common error is leaving a spouse's independent work decision until after a purchase has closed. Because that decision may affect which route is most useful to the household, it should be examined while the business terms are still negotiable, with professional licensing considered separately where applicable.