Hi Sarah- I suppose I may give you a slightly different slant from some of the other responses. Obviously, I don't know all of the details of your situation, but I would suggest that you do not need to have everything mapped out in your reconciliation at the outset. You are both likely fearful of what may be ahead and, although solid communication will be needed in order to restore full faith, pushing on the apartment issue is not necessarily going to aid your ultimate goal.
My H and I were separated for 19 months and he lived in another house we owned during that period. When we began reconciling I wanted "his" house on the market immediately and stressed myself over this issue beyond description. When I accepted in my mind that the house really truly did mean nothing in the full scheme of things and totally backed off of the topic, the house was put on the market and quickly sold. I suppose that it also became evident that I would not hound my H on the topic, but that I still hoped he would take the necessary measures to address something that he knew bothered me.
Every situation is different though Sarah. In mine, I did learn that relaxing more and believing more in my H and his plans likely helped to restore our marriage and make it better than ever. Similarly, my H became more responsive when I simply expressed my feelings void of sharp demands and ultimatums. I never stopped being true to myself because I knew what would be supposed "deal breakers" or complicating factors that I could not tolerate.
Reread the sections in "Divorce Busting" re. reconciliation. Reconciliation can be a roller coaster ride even with the best team work involved. I view divorce busting as an acquired skill that should last a lifetime, as opposed to something that is merely switched on during those hopefully limited times of crisis.