Sthephanie Marie was born in San Juan, Puerto Rico, and later moved to Campbell, Ohio, with her family. Following graduation in 2018 from Youngstown State University with a major in communication and a minor in theater, she pursued work in the entertainment industry. She has worked with several commercial bands and achieved great success in the pageant industry, representing Ohio in the Miss USA 2020 contest and placing in the top five at Miss Puerto Rico Universe in 2021. 

Witnessing how Alzheimer’s disease affected her grandmother, Maria, Sthephanie decided to raise awareness and funds for the Alzheimer's Association. She has been an active participant in The Walk to End Alzheimer's for several years, with a mission of spreading awareness and helping those affected by the disease.