An owners association, condominium association, cooperative association or residential real estate management association shall not adopt or enforce any policy or enter into any agreement that would restrict or prevent a member of the association from displaying the flag of the United States at a reasonable height, not to exceed twenty (20) feet, on residential property within the association with respect to which such member has a separate ownership interest or a right to exclusive possession or use.
Okla. Stat. tit. 60, § 858