The spouse and unmarried children under 21 are derivatives and normally obtain conditional residence with or after the principal. Once residents they may work anywhere, including the business, but they do not count toward the ten jobs.
Derivatives become residents; they do not become job creation
An EB-5 investor's spouse and unmarried children under 21 may accompany or follow to join, receiving the same two-year conditional residence when the principal's immigrant visa or adjustment is granted. Derivatives generally enter with or after the principal, not before. As conditional residents they may work for any employer, so the spouse can manage the hauling company's office or drive, but the statute excludes the investor's spouse and children from the count of qualifying employees, so their positions add nothing to the ten.
A child close to 21 should have the age-protection calculation reviewed before filing, because it depends on petition pendency and visa availability rather than on hope. Marriage of a child before admission ends derivative eligibility. Each family member files their own removal-of-conditions request or is included in the principal's I-829 at the two-year point, and each must keep residence continuous in the meantime.