My WW-radar is going off and it sounds like this might be an attempt to manipulate you. How is your signing the divorce paperwork even relevant to the fact that her dad has terminal lung cancer???

My thoughts exactly! They don't exactly diagnose "terminal" lung cancer the same day they find something unusual. I can't imagine that she/you wouldn't have heard before now that there may be an issue. I hope I'm wrong otherwise this is so sad.

Widowed 11/10/12 after 35 years of marriage
In a sense now, I am homeless. For the home, the place of refuge, solitude, love-where my husband lived-no longer exists. Joyce Carolyn Oates, A Widow's Story