I'm only speaking from my experience on the temp custody because that was the very first thing my XW did upon filing for D. She almost got away from it because she had it served to out marital residence which I no longer lived at. Found out about it the day before the hearing was to take place. If it went through, I would have been granted only 'supervised' visitation seeing the lever of "cruel and unusual punishment" dealt upon my adultress W. If that would have went through, god only knows how bad off I'd be today. And since your W is in a financial bind, by filing so on her behalf, she can claim herself primary caretaker (as she already hs, no?), and guess what, she needs the residence and you're out.
Food for thought, you fired the first shot, it can get nasty from here.
dday
Me 35/XW 33 S13 & S12 M: 10/17/98 OM & S: 07/08 D final 06/09/09 12/03/09 - 06/13/10 "Piercing" 06/13/10: Engaged to Re-marry 10/17/10 06/25/10: Expecting baby #3 2/14/11