givemesteel Fri 05-Apr-19 22:19:14

That is unbelievable, that's not a small list.



With a lot of those things I wonder whether the party got out of hand and broken or stained items (like towels or the crockery) were just removed and they hoped you wouldn't notice (?)



Sports equipment and games may have been used so out somewhere different, maybe?



Alcohol was obviously drunk.



But clothing is completely inexplicable.



All you can do is write a list of items (and make it clear that this is only what you've discovered so far) and their value and ask for the items to be returned or for you to be given whatever the monetary value is to replace them.



This is a horrible thing to happen and your SIL is 100% responsible for her guests so needs to stump up the cost if her friends won't give stuff back. I'd never speak to her again if she didn't.