Taking the book back with the apology note would have been sufficient. But involving the police, his counselor, a priest, and a neurologist? Really? A kid stealing a book is not that unusual, and you’re doing way more harm than good.
What’s done is done I suppose, with the police- but please don’t jump to the conclusion that he needs his medication adjusted because he did a fairly normal thing. And regarding the priest, I think telling him your son’s sins is inappropriate. Bringing him to confession is great, but it’s your son’s responsibility to confess his own sins, not yours.
Agreeing with TheRealJuliane and Pink Lemonade. This is much too much for punishment for the crime.
Two things stand out - first as Pink Lemonade says, you cannot confess someone else’s sin for them. You can certainly talk to your priest about your own concerns as a parent, but you can’t “prep” him for your son’s confession.
It is always a good idea to go to confession regularly whether you are concerned about your son’s behavior or not… We go as a family once a month. I never have made my kids go into the confessional though. When they were younger, I would read through a children’s examine (with NO commentary) and let them think for awhile before we got to the church. Then I would get in line and go to confession. If they also got in line and went, great. If they didn’t, they didn’t.
Second - you mentioned your wife’s health and your own unemployment. Your son will definately be affected by those things, but so are you. It sounds a bit like you feel out of control with everything going on, and so are over-reacting to your son’s very normal behavior. No, it isn’t good that he stole/took without permission. However, it does happen -and not just with ODD/ADD kids. Book fairs can be confusing - they are often held in the school library where you *do *take books without paying, and more than once a child thought a book had been paid for and took it innocently. I have worked book fairs in my children’s schools before!
I think a better plan is for you to take things a bit more slowly. Use this time while you are not working to spend some part of the day just hanging with your son - be the one who gets him from the school bus, take a walk through the park, play catch, help him with his homework.
Use this time to get deeper into prayer. Say morning prayer with your family before your son goes to school, take a rosary break after you’ve spent a set time job hunting. Can you and your wife get to daily Mass at least a few times a week?
It sounds like things are very difficult for you right now. Rely on God to take care of your whole family.