Malissa Osei
Malissa Osei concentrates her practice in commercial litigation and matrimonial matters. She has experience litigating complex contract disputes, negotiating prenuptial agreements, and handling child custody and child support matters in New York’s Family and Supreme Courts. Her practice focuses on helping clients navigate complex legal issues with strategic advocacy and thoughtful representation.
Before joining KSTM, Malissa worked with Caroline Krauss and Heidi Tallentire at Blank Rome, where she was part of one of the nation’s largest matrimonial practices. She earned her Juris Doctor from Cornell Law School in 2014, where she served as an articles editor for the Cornell Journal of Law and Public Policy, and received her Bachelor of Arts degree from Fordham University in 2008.
Malissa is fluent in Twi, a dialect of Ghana, and has a strong commitment to international human rights advocacy. During her internship with the Legal Resources Centre, a Ghana-based human rights organization, she successfully sought a presidential pardon for a death row inmate, developed an anti-human trafficking training manual for prosecutors, and facilitated a public forum on election disputes.
Recognized for her leadership and accomplishments, Malissa has received numerous honors, including being named to Best Lawyers’ Ones to Watch for Family Law in New York (2023), a New York Super Lawyers Rising Star in Family Law (2022), the American Bar Association’s On the Rise – Top 40 Young Lawyers (2021), Profiles in Diversity Journal’s Women Worth Watching (2020), and the National Black Lawyers’ Top 40 Under 40 (2019).
Malissa is a member of the New York State Bar Association, New York Women’s Bar Association, National Urban League Young Professionals, NAACP Legal Defense Fund, and Metropolitan Black Bar Association. She is admitted to practice law in New York and the District of Columbia.