@B'Elanna - thanks for pointing me to some deep lore.
While paging around that time, I found this interesting thing from our favorite shiksa:
So, did she actually graduate? She has been saying she has a degree, but we have no extrinsic evidence. We have her claiming she started at some T4 law school (which would require an undergraduate degree) but again we have no extrinsic evidence of that.
I'm persuaded she attended GMU, due to reporting of her being on the crew team in 2004, but she disappears from GMU public documents after that.
ETA: Leaving her sophomore year is consistent with her story of having sex/getting married in 2004 found here:
https://kiwifarms.net/threads/melinda-leigh-scott-marshall-castersen.32118/post-10371679