High schools are notified of NMSFs in early September. If your school has NMSFs every year, they will know the process for NMSF to NMF. It isn't that complicated, but it is a fairly short timeline to get the materials in.
Our HS usually has 8-12 NMSF in a class of 300 (though eldest kid's class had 24). I think the confirming score was not required for this year's seniors, because of the pandemic impacts/test cancellations. May or may not be required next year, but the threshold is low, lower than the Commended score, so not usually a factor to prevent moving to NMF.
If the transcript is all As and Bs, you are set. One or more Cs could prevent moving to NMF, but this is state dependent.
There is an essay too, but just write something on the topic, and don't use obscenities, and you are fine.
Congrats to your daughter. Whether she takes advantage of an NMF related scholarship, or some other merit, she'll do well. (I did not mean to imply in my prior post that my middle kid may have settled for a questionable school - school is in western PA, Dan Marino is an alum).
