That’s great you got an older cat, often times people don’t want them. To me it makes sense, kittens can really tear up a place-been there done that.
She has a good home with you and Rotten Kid! Mom, will like her too, but she may not show it. ;0)
Gotta wonder why the previous owner let her go. Maybe they moved into a place that does not allow animals. Or well, they all sorts of reasons.
Nice cat Tom!
She even has her "own" necklace!