Adding my name to a deed

My Mother died about a month ago. I will try and word this as simply as I can. About six years ago I had told my sister, in confidence that my husband might owe over fifty thousand dollars in back taxes to the government. She went to my Mother and had me taken off the will, without even consulting me. That said, now that my Mom has died, my sister wants to put me on the deed. My question is this, when my Mom died she had taken out a loan for about thirty-five thousand dollars to do some outside home improvements. She paid back perhaps ten thousand dollars. Now that my sister inherited the house, is she responsible for the loan? Thank you for taking the time to read this