Death At Will (Adele Gossling Mysteries Book 3) by Tam May

Rebecca Gold comes to Arrojo to set up her law practice and lands the affluent Thea Marsh as her first client. When Thea dies unexpectedly and her eldest son Theo is suspected of the crime, Rebecca turns to her new friend in town, Adele Gossling, to prove Theo innocent. — “Entertaining page-turner!”