"Code Name Edelweiss" by Stephanie Landsem

I suspect this book will be on my list of favorite new reads for this year.  It is enthralling!
Liesl Weiss loses her job as a stenographer at a big Hollywood studio.  It's the middle of the Great Depression and, ever since her husband disappeared a couple of years earlier, it's been up to Liesl to support her two children, herself, her mother, and her brother.  While searching for a new workplace, she meets up with Leon Lewis, a Jewish lawyer who offers to pay her to spy on suspected Nazi agents...