According to the NPC website, there is an alumnae panhellenic in the same city that the college is located in. Check this link:
http://www.npcwomen.org/alumnae-panh...directory.aspx
to see if there is an alumnae panhellenic near where you live. i don't believe it is vital for your pnm to have recs., but it certainly won't hurt and may get her a second look.
it is sweet of you to try and help her find recs.