OP, golfgal and TlovesD (not sure if I got the second screen name totally right) both gave you some good info about financial aid. I'd like to add a little bit, since my daughter and I are going through the process now. If a non-custodial profile is required, the school will expect your husband to help. Many, many private schools require this. Most public and some private schools require just the FAFSA. I have run across a very few schools that require a CSS (profile) form from JUST the custodial parent, but not many. Perhaps it would be best if your stepd limited herself to FAFSA only schools, and your husband could help out regardless.
Personally, I don't think 8 schools are too many to apply to. My dd is applying to six right now, and may add a few more from schools that are sending her free applications just to see where the total cost of attending would be lowest after all aid. (All six schools are schools she would be very happy at, with the "possible" exception of one). Your stepdd may want to see if there are any rolling admission schools she is interested in, just so she can try to get an admission under her belt. Some schools also have early action (NOT early decision), which is non-binding, but lets you know of the admission decision earlier. Be aware, though, that those deadlines are coming up. DD is applying to a school with a Nov. 1 deadline for EA. Also, as many on this thread have mentioned, CA schools are having lots of issues right now.
I'm curious why your sdd has chosen the schools she has. Honestly, the best thing my dd and I have done over the last year is visit schools. Fifteen of them! But, she discovered a few things about herself that she didn't know, and her top choice is a school that wasn't even on her radar before our visit. There are many good schools on all levels. She doesn't have time on her side, but I really think she needs to nail down what she wants (large school, small school, Greek scene, very serious school, very social school, etc.). She would probably be wise best to find a few schools, at least, where she is above the average applicant, score-wise. Berkeley is a tougher school to get into, as are Pitt and NYU. Good luck to your family on this exciting journey.