Bought property from a hier but no paper work.

[Jennifer Jones-Justus]

my husband and I bought property from a grandson ( step grandson). The children of the deceased did not and does not want the property. 

We have been living here just over a yr. We paid the taxes, maintenace, utilities, and upkeep. We have managed to make a 360 on the property and house.  

The grandson can't find the deeds and his grandparents did not have a will. But after we have done all of this, the grandson isn't wanting to do anything to help us get it in our name and the other hiers dose not want anything to do with any of it. What can we do to get this in our name.