Merritt is a native Delawarean with a long-standing family history in the First State. She earned her bachelor's degree in health behavior science from the University of Delaware, and she also has a background working in property management in the Rehoboth Beach area. Originally from New Castle, Delaware, Merritt now lives in Rehoboth Beach with her husband, Shawn McDonnell, and their four dogs. She has been a member of the Carrie Lingo Team with Jack Lingo, REALTOR® since 2016. Merritt is a licensed real estate agent in Delaware and is a member of the Sussex County Association of REALTORS®, the Delaware Association of REALTORS®, and the National Association of REALTORS®. She also serves on the board of the Fort Miles Historical Association.