A Just Clause by Lorna Barrett, 306 pages

Tricia Miles, mystery bookstore owner and amateur sleuth, is in for a surprise when her ne'er-do-well father, John, comes to town-and promptly becomes a prime suspect in the murder of a woman with her own scandalous past. Even Tricia's faith in the old man is shaken when the Stoneham police break the news that her father is a known con man who has done jail time.
But what about bestselling thriller author Steven Richardson? Is it a coincidence that he arrived for a book signing just before the crime or that the victim was found with a signed copy of his latest bestseller?
From merlot to murder, Tricia is determined to clear the family name before another body shows up ruins Stoneham's first-and highly anticipated-wine and jazz festival.