Hi dmrafa, I get it. You want this over--so you're helping her move out, so you're moving out yourself.

In the US I doubt you have to leave your place just because you said so unless you signed something binding or have been gone an extended time. Your attorney can clarify, right?

Are there any alternatives such as buying a separate PO Box or Physical Address without moving out? Do you have any legal basis to kick her out? If no luck with either of those, this seems like the first item to negotiate. You're the one who wants to change the status quo--get separate addresses in order to divorce. As you're the one motivated to make a change, you're the one who's going to need to sweeten the pot. How much are you willing to offer? This is a negotiation.