Once the FAFSA is submitted and processed, the parent that signed it can’t even view it, let alone make corrections, without the assistance of the child/student, assuming that the parent and the child do not share their FAFSA IDs with each other, which they aren’t supposed to do. I think it would be hard to hold a parent liable for something that happens after the FAFSA is originally submitted (like a change made by a school), given that the parent shouldn’t be able to access the FAFSA to see the change without the assistance of another person.