This letter serves as an unofficial message to a student that they’re almost certain to gain acceptance to a school. Likely letters are rare and only sent to applicants that a college considers very desirable. Of course, a likely letter doesn’t guarantee the student will be accepted to the college. For instance, if the student’s grades suffer after receiving the likely letter, then the invitation would be withdrawn. Think of it as a school’s way of showing how impressed it is with a student. Check with your potential colleges to see if they send likely letters.