E.Z.
You are supposed to be able to "apply" to the school you want.
If they are different districts (let's say one is LA City School and one is Torrance Unified) the one you are assigned to needs to "release" you, and then you can go on a waiting list-or just enroll if enough room at the school of your choice. If it's within the same district, I have heard that it is up to the 2 principals to decide. One of them releases your child, and one accepts it. After all, in the end it's all about the MONEY they receive on each student. I would assume that if you have legit concerns about bullies etc at their current school, they would help you out in finding a new school for your children. IF all else fails, get REAL friendly with one of the neighbours one street over, and start using their address. (it's been done....)