Please see my additional post below, because this student may not be able to claim that he is an unaccompanied minor.
Parent information is not required in this case, because the student is automatically independent for federal aid purposes. It may be required for Profile schools, but if that information is not available on the website, just call and ask. Some schools will make sure that the student is really independent due to lacking regular, fixed housing - this should not scare off someone who really qualifies (a lot of students misunderstand the concept or try to game the system, so schools have checks & balances).
The tuition waiver is great. While it doesn’t cover housing, it’s possible that a school may offer additional aid - the total cost of attendance does include housing costs, so it just depends on each school’s financial aid policies. That information may be available on the website; if not, call and ask. The large public university where I worked had a liaison for youth certified homeless under the MV Act - this person worked in the financial aid office, but other schools may have them under Student Services. Goucher provides a link to have an online Unaccompanied Youth meeting with an advisor: https://www.goucher.edu/financial-aid/documents/25-26/25-26-Unaccomp-Youth-Meeting.pdf. The information provided on Goucher’s website seems to indicate that they have very good support services for students in your friend’s situation.
This is a helpful link for scholarship purposes: Scholarships for Higher Education – National Center for Homeless Education . The NCHE website contains information you may find helpful.