@Loren Ver
FAFSA is a necessity if her son is planning on going to a state school. If it's private school, that requires completing both FAFSA and a different set of forms called CSS that does take into account the full financial situation of mother and son.
I have never heard of such a thing, and we've had 3 kids go through college. If you are paying cash, there's simply no need to fill out the FAFSA form, unless the child is receiving a scholarship from the school or plan on taking loans, then the school may have some requirement.
Our first son went to a private university; we filled out the FAFSA. Our taxable account/savings were such that only loans were available; however, he received merit scholarships from the school, so was required to fill out the FAFSA.
Our second son, special needs, went to a community college. We paid cash; no FAFSA filled out.
Our third child, daughter, special needs, started at a community college. We paid cash, no FAFSA filled out for the community college. She then transferred to a four-year state university. We did the FAFSA last year, however; taxable account/savings were such that only loans were offered. (I kind of wanted to see if we were eligible for assistance as we still had one child at home.) And we are talking much, much less than what your friend has in her savings/brokerage account. Next year will be our daughter's senior year; we will not be filling out the FAFSA.
Fourth child will start at a community college in the Fall. We won't be filling out the FAFSA.
The FAFSA, in some cases, is just a waste of time and energy to fill out. We've seen this with friends' kids also.
I want to add some other points also. I don't think I read what state the family is located in, but there are many colleges and community colleges which offer free tuition. I know in our state, that if the family makes less than around $60k or so, tuition is free to one of our four-year state colleges. You might want to have her look into what schools in the state offer reduced or free tuition and what the requirements are.
Also, two of our children who are special needs started at community colleges. What I have noticed is that community colleges tend to be more pro-active in regard to students with disabilities. One of the community colleges had a requirement that they met once a week with the student to go over things and see how things were going. I really feel that had a definite impact on their college experience. When our daughter transferred to a four-year college, yes, they did her accommodation plan, but the disability services office just seems more removed at the larger state school--maybe not as personal. So, I wholeheartedly agree with starting smaller if possible.