Yes. You, the seller, provide a disclosure statement pursuant to Title 60.
"A. A seller of property located in this state shall deliver, or cause to be delivered, to the purchaser of such property one of the following:
1. A written property disclaimer statement on a form established by rule by the Oklahoma Real Estate Commission which states that the seller:
a. has never occupied the property and makes no disclosures concerning the condition of the property, and
b. has no actual knowledge of any defect; or
2. A written property condition disclosure statement on a form established by rule by the Oklahoma Real Estate Commission which shall include the information set forth in subsection B of this section."
I purchased 2 FSBO's last year with only the standard OREC contract and closed without issue.
But here is the link to the forms if you feel compelled to send to your casual buyer. :)
https://www.ok.gov/OREC/Contract_Forms_and_Related...