My husband and I are both disabled and over 60. My sister-in-law has not seen or been in contact with us since 2003. My husband has a Traumatic Brain Injury. He is quite able to take care of himself but could not live alone as he would not remember to do some things such as paying bills. I have a back injury & depression but I manage to take care of us & the home & do everything. How can my sister-in-law just take guardianship of my husband? We do not want this.