Can a catholic private school hold the transcripts of a student for non payment of tuiton? the student is being released from college for no HS transc

The school might be able to hold your transcript for non-payment.  A private school is not under the same regulations as public school.  If the tuition was not paid, the school does not have to provide graduation information or a transcript, like a private college.  If you do not pay college tuition, you do not get a diploma and cannot get a transcript of your grades.   Maybe you can work out a payment plan.