@suanne90, There may be other options for analogous donor matches when there are no suitable family members available, such as Umbilical cord blood (UCB) transplant.

I’d really suggest having a 2nd opinion for your little girl. Bone marrow transplants can be quite successful. Often a larger teaching/research hospital can a larger range of medical capabilities. Don’t give up hope!
Here is a link to The Mayo Clinic to request an appointment if this is a possibility for you:
http://mayocl.in/1mtmR63
Do you have the opportunity for a 2nd opinion?