Update
After a few months of trying out other options, this girl has now asked to stay with me-I am in process of applying for guardian's allowance for her, so that I can fund her living with me. Asked social welfare if there was an interim payment which could be awarded to this girl, as I was sure the guardian's allowance would take a long time to come through. Social welfare referred me on to Community Welfare Officer, who told me that as the girl's parents were still alive, they would not be able to help her. They also said that she would more than likely not qualify for this allowance at all, given that her parents are still alive, even though it stipulates on social welfare website that if one has been abandoned by and not provided for by parents one may qualify. The welfare officer gave me very little hope of any assistance for this girl. I will be talking to the school next week to see if they can be of any help-any suggestions from your good selves would be most welcome!