I agree Barrett itself is safe but we do know the cuts will be primarily directed to the Liberal Arts College, with this student transferring to political science and, due to the Law School goal, likely taking courses in history, philosophy, sociology. (I assume “service courses” in these depts will be maintained unlike at WVU but a transfer student will need advanced classes, which are the most likely to be affected.) The end of the negociation will likely be known in the Spring, ie., after the student has been admitted.
Therefore this student needs a balanced list that includes UA and ASU Honors (safeties for a 3.9 instate), T20 colleges, and affordable universities in-between.
OP himself mentioned Barrett but not U of A - although I wouldn’t hesitate to go at this juncture.
I wish them luck whatever they decide to do.
To the degree that you are able to find out, I would look at average GPA at the schools you are considering, and – if possible – in your major.
At T20s the caliber of student will be relatively inelastic – they were generally high-stat, accomplished high school students who are interested in learning and contributing – so if you find meaningful differences in GPA among the schools you are considering in the major you are exploring, that may point to differences in rigor, calendar (course load/timing), curricular requirements, and grading styles/difficulty.
A small difference in average GPA may be attributable to something as simple as one prof of a very popular (or required…) course giving everyone As and Bs (inflation), or employing a curve which results in half the class receiving a C (deflation).
You gave some reasons why you want to transfer…but really…how do you know that these things won’t be issues at a different college.
It’s the devil you know vs the devil you don’t know!