Help! Title issue in SC and trying to close.

[Alan Sweeten]

We are supposed to closing in 8 days on a duplex in South Carolina and I just found out that the previous (deceased) owner had joint ownership on title of property at some point.    Then changed title to himself using Power of Attorney for the other person.   How is that possible?       

Their attorney will insure title through Chicago title but what happens when/if we sell.   What if some long lost heirs later pop us down the road.  Is this easy to fix?   Does Chicago title cover the fix or do we? 

Any direction or light on the issue will be greatly appreciated. 

Alan