@noorlight, I want to welcome you to the transplant discussion group on Mayo Connect. I am sorry to hear about your dad's current health status. You are to be commended for your interest in living kidney donation.

For a starter, I want to share the Transplant Pages. You can find materials for transplant recipients as well as living donors in the Recipient toolkit and a Donor Toolkit. https://connect.mayoclinic.org/page/transplant/

After you look at the toolkits, I think you will have a clearer idea of what is involved. Do you know whether your dad is a potential candidate for transplant?
I will be looking forward to hearing more form you.
Rosemary