Broadrick was born on November 26, 1938 and raised as an only child for sixteen years, until her younger sister, Derralee, was born. Two years after that, as soon as she was graduated from high school in 1957, Broadrick married. The first of her four sons, David, arrived a year later, when she was 19. Rick, Randy, and Kevin came along quickly after that. For twenty-five years, Broadrick worked as a legal secretary to help supplement her husband's income. During that time period, the family lived in Arizona, Texas, Illinois and Oregon.
After her youngest child graduated from high school, Broadrick decided to try writing a book. In January 1984, she sold her first manuscript to Silhouette. She has been a full-time writer since then, with over fifty books published by Silhouette. Broadrick lives in the Texas Hill Country.