No. A qualifying L spouse’s work benefit depends on valid status and appropriate evidence. A place in the family enterprise does not itself establish it.
Keep individual records separate
Children do not receive the spousal benefit solely through dependent status.
If a relative will remain outside the United States initially, plan for the appropriate later process instead of assuming the principal’s approval automatically places that person in status. Children are derivatives only while unmarried and under 21, and a child who reaches that age during the assignment loses derivative status and needs an independent basis to remain, which is worth mapping against a seven-year ceiling rather than against the first petition. Age is the condition to watch: dependent status is available only while a child is under twenty-one and unmarried, so a household with a nineteen-year-old should plan for a change to student status well before the birthday rather than in the month it arrives. Record each person's citizenship and current status at the first meeting as well, since routes differ by nationality and a family member's own history can create steps that do not follow from the principal's case.