1. A.

   1. 1. Within one (1) business day after the date of the filing of the lien statement provided for in Sections 142 and 143 of this title, a notice of such lien shall be mailed by certified mail return receipt requested to the owner of the property on which the lien attaches. The claimant shall furnish to the county clerk the last-known mailing address of the person or persons against whom the claim is made and the owner of the property. The notice shall be mailed by the county clerk. The fee for preparing and mailing the notice of mechanics' and materialmen's lien and costs for each additional page or exhibit shall be as provided for in Section 32 of Title 28 of the Oklahoma Statutes and shall be paid by the person filing such lien. Said fee shall be deposited into the County Clerk's Lien Fee Account, created pursuant to the provisions of Section 265 of Title 19 of the Oklahoma Statutes.
   2. 2. The notice shall contain the date of filing; the name and address of the following: The person claiming the lien; the person against whom the claim is made and the owner of the property; a legal description of the property; and the amount claimed. Provided that, if with due diligence the person against whom the claim is made or the owner of the property cannot be found, the claimant after filing an affidavit setting forth such facts may, within sixty (60) days of the filing of the lien statement, serve a copy of such notice upon the occupant of the property or the occupant of the improvements, as the case may be, in a like manner as is provided for service upon the owner thereof, or, if the same be unoccupied, he may post such copy in a conspicuous place upon the property or any improvements thereon.

2. B.

   1. 1. A lien claimant who is owed payment by the original contractor must send written notice of the unpaid amount to the owner of the property and the original contractor not later than the tenth day of the third month following each month in which the unpaid labor, materials, or equipment was furnished.
   2. 2. A lien claimant who is owed payment by a subcontractor must send written notice of the unpaid amount to the owner and the original contractor not later than the tenth day of the second month following each month in which the unpaid labor, materials, or equipment was furnished.
   3. 3. Failure of the lien claimant to send written notice pursuant to this subsection shall render that portion of the lien claim for which no notice was sent invalid and unenforceable.

Laws 1977, HB 1293, c. 207, § 9, eff. October 1, 1977; Amended by Laws 1979, HB 1006, c. 251, § 1, emerg. eff. June 5, 1979; Amended by Laws 1983, SB 119, c. 51, § 1, emerg. eff. April 26, 1983; Amended by Laws 1984, HB 1729, c. 268, § 5, eff. November 1, 1984; Amended by Laws 1985, HB 1265, c. 166, § 4, emerg. eff. July 1, 1985; Amended by Laws 1989, SB 328, c. 366, § 2, eff. November 1, 1989; Amended by Laws 2000, SB 1172, c. 363, § 23, emerg. eff. June 6, 2000 (superseded document available).