S.L. Armstrong was born in West Virginia and raised in Tampa, Florida with her younger brother and a family dog.

She has been a voracious reader since early childhood, a hobby encouraged by her mother. In middle school, S.L. began to write as a hobby, scribbling poetry and snippets of prose during her classes. By the end of her high school career, she'd filled three binders full of her writings. It was the beginning of a life-long obsession with words and worlds, characters and plots.

Shortly after high school, S.L. married her husband, who has always encouraged her in her chosen field.

They currently live together in Bradenton, Florida with seven cats and two dogs, and she is one of three founders of Storm Moon Press.