Prayer to keep our home.

I am a 60 year old disabled grandmother raising two granddaughters and am about to lose our home. My fiancee and father/grandfather figure to my granddaughters has unexpectedly passed away. He and I have a written agreement that I would assume the mortgage on his house where the girls and I live in the event of his death. His children were left everything else including his other house and property and have control of his estate stating out agreement is void. Please pray that God allows us to stay in our home and makes it possible for me to assume the mortgage. Thanks and God bless you!