A qualifying spouse's employment authorization is generally incident to valid E status, so it depends on that status remaining valid and evidenced. Check the admission record and any E-2S notation well before expiry, and discuss timing with counsel rather than assuming continuity. Children in dependent status hold no work authorization through it, and a child approaching twenty-one raises separate questions.
Diary the ages and the expiry dates
Dependent eligibility for a child ends with marriage or reaching twenty-one, and families often notice only when a document is refused. Put every relevant date in one place: each person's authorized stay, each visa expiry, and each child's birthday. Raise a child nearing the age limit with counsel early, since alternative plans for study or another category take time that a last-minute discovery does not allow.
If more than one relative intends to invest or hold ownership, address each person's nationality and role individually rather than treating the family as a single undifferentiated investor. Identify the treaty-national investor, confirm that qualifying nationals own at least 50 percent of the enterprise, and document how the principal will develop and direct it through ownership or operational control.