Unfortunately I'm currently feeling your pain, though at a younger age. My eldest doesn't have any concern at all for any repercussions of his actions. We always thought that was him being rebellious a bit earlier than normal, he's 12.
Things he has been caught having stolen from us in the last month. Money, pen knife, winning scratch card, e-cig. He's currently excluded from school and, because he had the knife at school, police are involved and w may not be allowed to return to that school.
We've tried everything. He's had everything he could ever want, he's had it all taken away from him and returned on good behaviour, we've worked with various schools with him, he's had a so-called 'nurture group' at school as part of their SENco approach but this has failed absolutely.
Just sharing to point out that your stuff might seem like it's the worst thing in the world at the moment, but it could always be worse.
I would say that it's absolutely imperative that you get your kids sleeping arrangement sorted. For me, that's job 1.