The Estate filed documents asking the Probate judge to foot a portion of the bill on Janet’s mortgage.  Sources tell us … Katherine Jackson has spent time at the condo and the Estate is willing to pay a pro rata share of the mortgage based on how much Katherine uses Janet’s Vegas crib.

A hearing is pending on the Estate’s request, which was filed before the whole Arizona thing.

Two interesting things.  

— Thing 1.  Given that Janet has become an arch enemy of the Estate, it’s kind of a smart move to co-opt her by partially footing the bill.

— Thing 2.  This all may amount to nothing, because we’re told Katherine isn’t speaking to Janet, so it’s unlikely she’ll be sleeping in Janet’s bed anytime soon.