I need help with my 7yrs old son. He lights my room on fire when he goes to school. Doesn't do no work. Hits his younger bother and sister. Looks at me with mad face when I say something. I called children's aid, they do nothing so I'm here looking help.

Have you talked to the school counselor or nurse? What country are you in?

Is he in therapy? He obviously has issues. What about your other children, do they also have issues? Could it be a problem in the home, parenting?

He is taking over because you aren't in control, and you want others to do it. Too bad no dad.
Take away all his fun, access to computer and TV and how did he get matches or a lighter to set a fire? Show discipline and follow through and mean it, and do all the work and time it takes to watch him. Because of the fire I think you should be able to get him in foster care for a while, for the safety of the younger children. Did you tell Social Services about it?

If you do decide to send him to foster care, be prepared that his issues will likely get worse. Now he'll not only have no stability, but he'll feel as if he's unwanted and unloved as well. Frankly I think sending him away is the worst thing you can do.

You're the parent, you need to be a parent to him. If you can't do it, then get help, put him in therapy, and find out why he's behaving this way. He's only 7. There's no reason why he should be acting this way unless there's something seriously wrong with him, or something seriously wrong with your parenting.

I don't get the feeling that you want to do the work. Am I wrong?
Nothing you said shows anguish about sending him away.
And if you think a 3 week camp 'fixes' him and he comes home a good boy, you are wrong.

I am no one to judge I also have children and I cannot I magine what I would do in your situatuon. Try different punishment methods, try to see what works for Him, because He is getting older. He is still at an age you can control Him, but don't give up on your child, He is trying to tell you something. Boothcamp and stuff like that might help, but you have to be consistent with punishments. With my 9 year old punishments like taking away TV, friends, not buying him anything He wants like candy and stuff for like a week or more depending on what He did works. Also putting Him in God's hand, I cannot be with him when He is in school, but I know He is not alone. No child comes with a manual, but we do have one that is the Bible. Pray to God to give you patience and to guide you. Wish you and your family the best.