Am I that horrible if a daughter?

My mom has been living with my brother and his wife for a couple years now and they are moving next week to another state and my mom has nowhere to go once they leave. My mom doesn't have the finances to supply for her own place and she does not want to stay with her mother. The only option she has either a shelter or apartment. I am married, have a very small apartment and my husband and I already argue constantly. I love my mom dearly but she is very opinionated and believes it is either her way or no way at all. I would rather my mom not move in with us because of space, privacy, and overall our sanity and jeopardizing my relationship with her and my husband, it's happened before. We each have our own habits that have ALREADY clashed together. I know I'm terrible and I can't let her live in the shelter, I just don't know what to do????