Chance of a Ghost (Haunted Guesthouse #4) by E.J. Copperman (Berkley Prime Crime mass market, 5 February 2013).
Alison Kerby is pretty close to her mother, so when Loretta shares with her daughter that she's been seeing the ghost of Alison's father on the sly, Alison is surprised and hurt. Alison was very close to her dad, so the thought that he wouldn't want to see her again is painful.
When Alison hears this, she's immediately suspicious, and even more so when she meets the pompous and melodramatic former actor. With the help of guesthouse ghosts Maxie and former P.I. Paul, Alison, Loretta, and Alison's daughter Melissa, they attempt to discern whether Laurentz actually was killed, and if so by whom.
Copperman deftly manages to blend paranormal elements into a humorous, light mystery that's interesting and enjoyable. The charming characters and well-constructed story are reminiscent of black-and-white films and early television comedies.
FTC Full Disclosure: Many thanks to the publisher, who sent me a copy of the book for review purposes.