Nothing. She is utterly unrepentant and claims no idea what she did. One sibling is also no contact. The other is involved, therefore I decline to communicate because they cannot be trusted to not pass on information.
100% yes on checking brands/type for craft and art materials. You can go VERY wrong. Enlist a knowledgeable spy where possible.
These are probably too personal... I was given a miniature greenhouse I gave 2 shirts from jim will paint it and a plush capybara that I'm not immediately finding online and the cats are getting this weirdo from the opshop
There are squatters networks if you wanted a different approach on that until the official