Help needed for me and my family..

Hello, I'm opening this campaign on the go fund because of the situation my sister and I are in. We're going to lose the house we've lived in all our lives because our uncle got us in trouble, my dad signed his share so he can take out a mortgage and fix himself up the top floor.but he's spent all his money and gone to Germany and he's not paying the loan for seven years. Our dad died three months ago of lung cancer :( And now we're practically on the road. Well, I'd like to ask if anyone can help us as much as they can to help us buy our house from the bank.