Sarie Pieterse was born on 23 May 1968 at Boksburg. She matriculated at the Trompsburg Secondary School in 1985 and joined the former Trust Bank in Bloemfontein.
In 1991 she was appointed as a secretary at a law firm in Bloemfontein where she gained extensive litigation experience over a number of years. Sarie has three children. She joined Christo Smith Attorneys Inc. in August 2015 and heads the Collections Department and Uncontested Divorces at the firm. Sarie takes a keen interest in her work, especially attending to the needs of parties going through the trauma of a divorce. She also enjoys gardening, reading and spending time with her children.