The Last Word (A Spellman Novel) by Lisa Lutz (Simon & Schuster hardcover, 9 July 2013).
This was the perfect vacation read: light, funny and with a plot that's fairly straightforward.
Isabel is a bit over her head trying to run the Spellman Agency after taking it over*. She's just not cut out for administration. It doesn't help that half her employees (her parents) insist on showing up to work in their pajamas, and refuse to attend staff meetings.
She's having trouble keeping up with the accounts, mostly because she's not sure how, and then she's accused of embezzling from one of her major clients.
She's living in her brother's basement, and trying to avoid babysitting his toddler daughter Sydney (aka, Princess Banana) who exhibits a curious disdain for her Aunt Izzy, trying to convince herself she doesn't miss her ex-boyfriend Henry, and wondering if her parents' marriage is falling apart.
Salvation comes from where she least expects it (no, I'm not going to tell you), and Izzy and the Agency survive.
Sadly, as the title implies, this is the last of the Spellman Documents. Izzy and her family will be missed.
FTC Full Disclosure: Many thanks to the Publisher for the e-galley of the book.
*See Trail of the Spellmans