When the property attached is real property, the officer shall leave a copy of the order with the occupant, or, if there be no occupant, then a copy of the order shall be posted in a conspicuous place on the real property. Where it is personal property, and he can get possession, he shall take such into his custody, and hold it subject to the order of the court.
When the property attached is real property, third parties shall not be affected until a copy of the attachment order and the legal description of the real property attached shall be filed and placed of record with the county clerk of the county where the real property is located.
Okla. Stat. tit. 12, § 1159