You said the D is final? Why is she still there? What was the agreement for living arrangements? I'd ask her: "When will you be moving out?" Is she can't afford to keep the current place and pay the bills then it is on her to find some place she can afford.
She is still there because I told her she can stay for longer so the kids are in the same house. She said she will pay me a small portion of the expenses. Not much but with the D every extra single cent is helpful to me given alimony, child support and attorney fees. She will move out if I ask her to but then reconnection becomes harder.