Do schools consider a family's student debt when calculating financial aid?

My father’s financial info was not included. He won’t be contributing anything and is very bad with money. He likely makes less than $10k a year, weaves in and out of sobriety and doesn’t own property. My stepfather’s financial info, however, was included in the NPC. We included everything it asked for insofar as it pertains to our household, just not my father’s.

Is applying for the CSS waiver done once, or do I have to do it for each school that I apply to? And can I know if the waiver was accepted before I ED to a school?