If the deceased person only co-signed, that is, lent his credit standing to you so that you would be approved, then the family has no stake in the property. All the co-signer did was ensure that if you defaulted, he would be financially responsible. He never owned the house, so no relative can make a claim against it.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.