Save our home from foreclosure

Please help to save the only home we have if we lose our home we have no where. I was put out of work jan 2018 due to medical issues and my fiance is the only one working. We have a 7 year old son. My fiances bank account got frauded and they got every dime we had. We have lost our daughter my mother and step father all within the past 2 years and its been very rough on us. This home was my fiances dads. They have a foreclosure sale date for it to be sold on court house step as of febuary 5th 2019. Please help.