765 ILCS 5/19
(Text of Section before amendment by P.A. 104-40)
The acknowledgment or proof of any deed, mortgage, conveyance, power of attorney, or other writing of or relating to the sale, conveyance, or other disposition of lands or real estate, or any interest therein, by a married woman, may be made and certified the same as if she were a feme sole, and shall have the same effect.
(from Ch. 30, par. 18)
(Source: P.A. 77-435.)