Liver Transplant Options in the United States

MY mother has end-stage alcohol-induced cirrhosis. She is very sick. I am willing to do partial liver donation and we have pursued two hospitals in our area - Georgetown University and University of Maryland. She was rejected by both for being too "high-risk" of a patient. I am looking for other hospitals/programs who may accept a patient while others are rejecting them? I appreciate all help. Thank you.