We are a small family cluster that have inherited mineral rights in Caddo County. I am very confused on the issue of the paper work that has been done in the past and filed with the County. My oldest Sister passed on some 15 + years ago. When we were approached by a landman to lease in 2017, an Affidavit of Heirship was filled out by her two daughters and sent with the appropriate will and death certificate to the landman handling the lease. The same circumstances for another Sister who passed on prior to 2017. We are now in the final stages of signing another lease. We are dealing with the same landman. But he claims that the Ok laws have changed regarding who can fill out and sign the Affidavit. And that the paperwork done om behalf of my two deceased Sisters in 2017 has to be redone. He says that now the affidavit has to be signed by a “disinterested” party. Does this sound at all reasonable?