Rosenberg wrote her first "novel" at age nine, in the fourth grade, but did not publish a novel till Heart and Soul, a Young Adult novel it took her twenty years to complete.

[citation needed] Her father owned a tool manufacturing company in Smithtown, Long Island, which he ran with several cousins.

[citation needed] Rosenberg graduated from Syosset High School, where she won an NCTE Writing Award in her senior year.

Writers she has taught include Nathan Englander, Sheila Schwartz, Ellen Potter, Angie Cruz, Lisa Rowe Fraustino, Kate Schmitt, Susan Campbell Bartoletti, Jeff Ford, Josephine Schmidt, and Michael Greene.

[citation needed] She met her second husband, David Bosnick, in her junior year in high school.