Tope hails from a devout Christian family. As a child she engaged in drawing, singing and dancing, and had aspirations to be a painter. She studied Economics at the University of Ilorin, Kwara State, but left the course to study Public Administration and then Theatre Arts, TV & FIlm Production at Lagos State University. She became more interested in the theatrical arts and later studied at Directing at Colorado Film School of the Community College of Aurora, Denver.
Tope, who was an actor for 12 years, before becoming a director, cut her teeth in directing, working as an assistant director for The Apprentice Africa and has since become known for directing TV dramas and soap operas such as "Hush", Hotel Majestic, and Tinsel (TV series). Though she has directed several short films such as The Young Smoker, Till Death Do Us Part, New Horizons and recently Ireti, she is known for her 2012 feature film Journey to Self.
In 2015, Oshin produced the romantic film Fifty, about four fifty-year-old female Lagos residents. The film broke box office records upon release in the December, taking N20 million in the first weekend. In 2016, she directed the documentary, Amaka's Kin: The Women Of Nollywood, as a memorial to prominent filmmaker Amaka Igwe, who died in 2014. The documentary addresses issues facing female directors working in Nollywood in a male-dominated industry.