Property sold fraudulently

[Benjamin Jackson]

Hi,

I need to figure out if this is worth pursuing. A uncle that just died sold a family property 20 years ago. He had the same name as my grandfather and sold the property right after my grandfather passed away. The other heirs did not agree to the sale. The sale was made through a quit claim deed. Is there anything my family can do?  

Note: 

- There was no will to give the property to my uncle.

-The other heirs didn't sign any documents to sale the property or received any money.

- The property is now worth over a million dollars now.