Dear Kimberly,

Thank you for contacting Mearto with your appraisal inquiry.

The presented object appears to be a painting made in oil paint on canvas with the measurements of 24 x 26 inches. The painting depicts the face of a girl or a boy and is dated 1984. It was made by the American artist Lee Hartman. 
Sadly no additional information for an artist with this name fitting in style and motif is given by reference books and databases. 
Comparable objects were recently not offered and sold on the international auction market. 
This piece is in good condition and there is no serious damage visible in the images provided.
A fair market estimation would be between 250 to 500 USD.
This estimate is based on actual recent past recorded auction sales of comparable items. Retail "asking prices" can be higher and may vary.

With kind regards, 

George