The lates *may be* deleted by the servicer you complete the rehab with, but there's no guarantee.
They would not have deleted the lates from any holder other than themselves.
I called Nelnet and they asked me to send them a copy of my credit report, and a statement from the Department of Education that the loans were PIF. The lady had no clue what I was trying to say.
So instead, I filed a dispute with all 3 CRAs that the loan status is incorrect (they are paid in full- not 120 days late) and requested an update and/or early exclusion. I also gave them proof that the loans were paid in full in 2015 (some of the delinquents listed are before this date, some are after). So we will see what happens (if anything).