It is one bed, one bath Apt. only 700 SF. an old couple live the

 I do not even have their information I brought that Apt. with tenant three years ago. They were good tenant, I only went there once during three years to replace stacked washer dryer.I heard wife is sick these days. i need look for signs that they have abandom and move out the Apt. such as  check whether they turn off utility.