Thanks gold river,
However the unresponsive parties are not talking to anyone. Their relatives nor me. I have mailed letters, they have tried to call. One doesn't have a valid contact number. The house is going up for tax sale in a few weeks.
In my correspondence I have told them that although I am interested in the house, if you are not interested in selling house you do have other options such has paying the minimum to get the house out of the tax sale. Then the family will have more time to decide on what to do with the house. That was 2 months ago and no one has done anything.