Legal Question in Real Estate Law in Arizona

I recommend that you stay and occupy the property. You did not say that your name is on the title to the property, but assuming that it is, you have the right to stay and occupy. It may be uncomfortable to do so, and that is why you should have a written, legal agreement with your co-owner with regard to who occupies, is rent payable to the other, who is responsible for the mortgage, insurance, taxes and maintenance costs until the property is refinanced or sold, and any other relevant items pertaining to the property. You don't lose all of your rights by moving out, however, you should have an enforceable agreement before you move out.