There are 3 books in the Masquerading Mistresses series.
The Masquerading Mistresses series does not have a new book coming out soon. The latest book, Misadventures in Seduction (Book 3), was published in September 2014.
The first book in the Masquerading Mistresses series, No Ordinary Mistress, was published in March 2014.
The Masquerading Mistresses series primarily falls into the Historical Romance genre.