Okla. Stat. tit. 59, § 59-46.27
Prohibition against architects bidding or holding
financial interests in bidding entities for certain contracts.
It shall be unlawful for an architect, at any time, to bid or
hold a financial interest in any entity competitively bidding for a
contract for the reparation, alteration or erection of a building or
other structure for which he or she has prepared the plans and
specifications unless the contract is a design/build contract.