I have not followed this thread but for interschool transfer at Michigan look at this.
So at Michigan they want their students taken care of. My son wanted to pursue Actuarial Science for a few minutes but once started knew he wanted to go into engineering instead so he did a cross campus transfer outlined above. He was accepted by Feb 1 of his Freshman year for the transfer for that upcoming fall. No big deal. You have to write another essay and meet the requirements. They are not always just the minimum. Everyone is looked at holistically (sound familiar). So you can meet the minimum and still not be accepted. Nothing in life is guaranteed.
Also Michigan is very hard. Especially engineering. Their saying is getting a B here is like getting an “A” almost anywhere else. So getting the minimum can be much harder then you think. This is very difficult to phantom for the these excellent students applying. Also get ready for your GPA to drop even with you studying all the time. Like I said. It’s a very hard school and it’s not said enough.
Hope that helps.