I read this in paperback at least 10 years ago and pretty sure I got it used then so could be 15-20 years old and possibly not available on kindle.
Book 1 was a human h, recently turned werewolf H. She had just won the lottery and was dealing with her troublesome family, especially her sister. At the end of the book (or possibly later in the series) she ends up faking her death and leaving the money to a bird sanctuary. Or to set up a sanctuary.
I might be confusing 2 series but I think there were other types of shifters? I remember a side character that was a snake shifter.
Sound familiar to anyone? Like I said, these were in PB so they would have been traditionally published.