He received a Bachelor of Science degree from University of North Carolina at Chapel Hill in 1983.
He received a Juris Doctor from University of North Carolina School of Law in 1987.
He was nominated to the seat vacated by his father, Judge William Lindsay Osteen Sr.
He struck down North Carolina's 'life of the mother only' 20-week abortion ban in March 2019.
[2][3] However, Osteen reinstated the NC 20-week abortion ban, with exceptions for urgent medical emergencies, after the June 2022 U.S. Supreme Court decision overturning Roe v. Wade which erased the legal foundation for his 2019 ruling that had struck down the 1973 state law.