School District Excused 41 Absences & Refuses To Give Me Records + More [pa, Usa]

First - i’m low income. i’ve been exhausting ALL options. I’m stuck on what i can do. my kids won’t talk to me because their mother says i’m trying to send her to jail(i’m not) My ex-wife illegally moved my children 3 hours away & enrolled them in a new school without court approval or my consent (I have joint legal custody). She’s refused my visitation since she moved. The district falsified attendance records to avoid truancy charges (e.g., marking days as field trips when my kids were with me), ignored my multiple reports of abuse/neglect (mandated reporting violations), and involved a non-parent in education decisions while refusing to acknowledge me as their legal father. i have sent 15 formal written requests for action on their part - every time i request the absence notes that justified the 41 absences & on each 15 they either ignore my request or on one of them - the superintendent put in writing “no, you will not be getting the absence notes from the mother”. the superintendent is also the district RTKL officer. & has been sued twice before for these same violations at his previous district when he was the principal. i’ve given the school the current legal custody order notarized from the court dated that day on 4 separate occasions. they acknowledged my rights in the beginning of the year but continue to deny me all of them. I have 256 pages of evidence, including proof of fraud, altered attendance logs, and ignored custody orders. What are my options? Please don’t come at me for not doing one thing or another yet. my relationship with my kids has deteriorated and that has always been the last thing i wanted. so much so that in hindsight - i should have done something sooner i just don’t know what that something is so im asking for your help and advice. thank you in advance.

edit this year, they implemented an IEP for my son who previously was in excelled courses without my knowledge or consent . it’s clearly a result of their excusing 41 absences last year. his educational behavioral and emotional everything has completely deteriorated. he has already had 5 detentions and 1 ISS. he had never had one discipline in my school district.