I have a brother receiving inheritance and not me. They said I needed to sign in 10 days or offer would be void? Anyone help me.
Probably start with the state where the minerals are located. In Oklahoma I am not aware of any 10 day signing rule, it certainly is not in the probate statutes or case law. Don’t get rushed into anything you don’t understand. Look for an attorney in the directory for the state were the minerals are located. 
Thank you! The state is VA, Tyler County.
Visit with a probate attorney there.