Birte Seland Sundsdal has diverse legal experience, currently serving as a Dommerfullmektig at Oslo tingrett since February 2021 and holding multiple roles, including Senioradvokat and Advokat, at Advokatfirmaet Haavind AS since January 2015. Educational qualifications include a Master's degree in Rettsvitenskap from the University of Oslo, obtained between 2010 and 2014, and a Bachelor's degree in Sports management from the Norwegian School of Sport Sciences, completed from 2007 to 2010.