Oppositional Defiant Disorder (ODD) Support Group
Oppositional Defiant Disorder (ODD) an ongoing pattern of disobedient, hostile, and defiant behavior toward authority figures that goes beyond the bounds of normal childhood behavior. When a child cannot seem to control his anger or frustration, even over what seems to be trivial or simple to others, the child will often react in violent or negative ways to his own...
Don't disrupt his school schedule, as in vacations in the middle of the school year, or days off just because he's not getting out the door easily. I've seen the disaster this creates at school. It might not happen the first day back from school, but I've had a recent episode with a student who tantrumed, in increasing intensity, from the moment he had to start class work till the end of the day. This was four days back from vacation. He took a tantrum break for lunch, recess, and quiet time - where he was happy as a clam. it was when he had to do work that he flipped out, because he was used to playing around for the last 10 days with his family. We couldn't let him take the bus home, so the second he heard mom was coming to pick him up (it was the end of the day) he calmed down again. Like a flip was switched. That family vacation he took disrupted his usual routine, and set his progress back.
He has to know what the rules are and has to stick to them. Consistency is key. Also has to be held accountable for his actions, in some way. If he messes up the living room by throwing things around in a tantrum, it's his job to clean it up once he's calm. Not your job (I mean you can help a little with stuff that's breakable or heavy). No playing until done. He calms down. He fixes his mess. Even if he has to sit for a long time before he's calm. He has to see logical consequences to his actions, and has to see them every time. This might not always dissuade him from tantruming next time, but he'll remember that he has to fix whatever it was he messed up. Hopefully he'll get it eventually.
Praise him for the good stuff, and a lot of it. Make sure he knows you're on his side, despite everything. Teach him how to anticipate when he's starting to melt down and establish a means for helping him calm himself down - whether it be deep breathing, singing, a squeeze toy, whatever. Teach him skills for solving problems - your sister knocked over your lego display, how can we fix this? Give him choices -you can build another one, I'll help, maybe even bigger or you can you play with cars instead. Which do you want to do? Choices are important, as often their anger is so intense it prevents them from seeing a way out of situations. You help them see the way out by providing good choices. Also, rewards for good behavior (the charting can help with this).
What is the school doing with him? It might be important to follow the same structure and methods they use in school, if it's successful there.
Get out of the house once in a while for your own sanity. Plan a date night and get a reliable sitter. Make sure whatever the sitter will be doing with the kids is something your son really enjoys, so the chances of her returning are good.
As far as the noise and the lease, I don't know. Maybe a community social worker has an answer to that. Reach out to as many people as you can.
Good luck, things will get better as your family learns how to deal with these issues. I know it's exhausting.