Rosalina-Ledet
so, this is somewhat similar to The Thirteenth Cat by Mary Downing Hahn and if you haven't read it, I suggest you do because it'll help the story make sense but in the introduction, I'll explain the book for those who haven't read it yet and it's not really spoiling the book since it's on the back of it and you know the plot in a few chapters but some things in the book may be changed. The next paragraph will be what it's about.
Marjorie lives in a crappy apartment next to an old woman since she just moved in the apartment who turn out to be a witch with magic who have an insane number of cats. Once she realizes who her neighbor really is, she is stuck as a cat and runs away from her neighbor meeting her cold-hearted deputy who takes her in not realizing the cat was her boss.