My family currently has two homes, due to being unable to sell in the bad economy. I moved into our "old" one after college, and now pay for all utilities/taxes/insurance with my parents permission. My mother and I strongly do not get along. My dad is in no immediate decline, but would it be possible for him to leave me his "half" of the house in his will so that my mother would not be able to take it from me unexpectedly? The house is in Illinois.