<p>Apply for a citizenship ASAP as this will directly affect many scholarships. Trust me here, there are many scholarships you are not even aware of right now that might come knocking on your doors next year. Once accepted, the schools will require a proof of citizenship from your son before they distribute any money (aid, merit etc).</p>
<p>I would take ACT once. You never know, he might get a perfect score :)</p>