Okla. Stat. tit. 21, § 21-547: Buying lands in suit

Every person who takes any conveyance of any lands or tenements,

or of any interest or estate therein, from any person not being in

the possession thereof, while such lands or tenements are the

subject of controversy, by suit in any court, knowing the pendency

of such suit, and that the grantor was not in possession of such

lands or tenements, is guilty of a misdemeanor.