Sunshine Hunter is the first book in the Susan Hunter Mystery Series by Maddie Cochere. It's a light chic lit/mystery read and currently free for Kindle.
A murderer, a stalker, and a lying boyfriend. Susan Hunter manages a weight loss center by day and plays racquetball at night, but now she’s run off to Florida ... and she’s accused.
From Goodreads:
Chick Lit Mystery - The Susan Hunter books are not your typical mysteries, and Susan is not your typical sleuth. Often, she is simply in the wrong place at the wrong time, and things go downhill quickly. All of the books cross genres of chick lit, mystery, romance, humor, and action, bringing you a fast-paced, easy-breezy read.