You found the RIGHT sight for yourself and your sister. Sorry you need us be we will be there for you.
That is very loving that you would ocnsider being a liver donor for your sister. Unfortunately, that does not work for adults. (babies can be given a portion of a liver) The donor will have to be from a person on life support who is an organ donor.
We have several members here who have loved ones on the list or being listed for organ transplants and they will be able to give you more information on the process.
Where is your sister being treated and I assume she is under the care of a hepatologist?
It is very scary to watch end stage liver disease as things can change very quickly. But the liver can also stabalize after a crisis. I hope you or another family member or spouse are there to watch your sister and seek medical attention if needed.
There are excellent resources on this site for end stage liver disease. Read them if you haven't already done so. Become familiar with indicators of encephalopathy or complications that need to be monitored closely.
I am caregiver for my husband, Gene who has cirrhosis and esophageal cancer. He is not a transplalnt candidate due to his cancer diagnosis and age. But he has amazed the doctors by surviving and is nicknamed Miracle Boy.
You are in my thoughts and prayers,