After my father's death my mother came to live with us. Our previous home (fully paid off), was too small for all of us to live comfortably and safely for my mom. Consequently we moved to a new, larger one. Due to the bad market in our area, we cannot sell our old house at this time and I am wondering if we would be allowed to claim some type of an exemption for the real estate taxes we paid on both properties on our IRS 1040 this year? I do realize we are allowed only one primary residence exemption but these times are extraordinary at the present...