What is the law regarding moving out without being emancipated?

I am so sorry for your situation.  You are a strong and brave young person to write in for help and I hope that I can guide you here.  So becuase your adopted Mom is your Mom under the law, if you run away or move out she can have you brought back to her.  If you are being abused it should be reported.  What will happen then is that you will likely be placed with Child Protective Services.  They will look to place you somewhere safe. They will make every effort to place you with a family member rather than the foster system.  Have you spoke with your biological Father?  Technically if you were adopted then he has no legal rights as they apply to you any longer so he would not be considered a relative.  Sometimes, though, if a trusted adult steps forward during proceedings you can be placed with them but that is not always the case.  Some one can, though, apply for guardianship of you and given your age the court will consider your wishes. Speak with those that you trust.  See of they will help.  Having a lawyer ready with papers for guardianship can be a good idea too. If your teacher is aware of the abuse he or she has a legal duty to report it.  It may be rough getting settled until the dust settles with placement but you know that there will be a light at the end of the tunnel. You are taking the first step to a new life and I can not tell you how much I look up to you for doing this.  You should be very proud of yourself.  I wish you only good days ahead.  Good luck.