while reaffirming your morgage in a chapter 7 can it also be refinanced at the same time

my husband lost his job of 21 yrs. Before losing his job we had filed a chapter 13, we were going to be finished with in 36 months, we had about 2 yrs to go when he lost his job, we had to put our mortgage in the chapter 13 which extend our time in the bankrupty.We have exhausted our severance at the time he lost his job and can no longer afford out payment. We want to change from a 13 to a 7 bankruptcy and reaffirm out mortgage however that mortgage is still to high. My husband is unemployed and I only have my income at this time. Is there anything I can do to save the family farm?