Roslyne holds a Bachelor of Arts degree in Government and International Affairs from the University of South Florida and a minor degree in Spanish. She earned her law degree from Roger Williams University School of Law in Bristol, Rhode Island. During her legal academic career, Roslyne functioned as a junior notes editor to the Ashburn International Transitional Journal, served as a legal research and analytical intern for the Mexican Embassy in Washington, D.C and worked as a law clerk for a private civil litigation firm in Providence, Rhode Island. She earned the CALI Award for the highest honor in Trial Advocacy and later went on to clerk for the District Attorney’s Office in Fall River Massachusetts.