I am so sorry for your situation.  Although a Chapter 7 will stop a foreclosure temporarily, the bank can ask that the stay be lifted  in order to continue with the foreclosure.  In most states you have the right to stop a foreclosure "until the gavel falls" as they say at the sale.  Many states also allow a right of redemption where even after foreclosure you can redeem the house.  But not Florida.  Your situation needs a bit of clarification as to whose name the house is in and if the foreclosure is for back taxes (which I believe that it is).  You all have the same rights to the house and the same responsibilities.  I think you should seek help here.  Try legal aid or the state attorney general's office.  Good luck.