Looks like you have unanimous agreement with your decision/actions so far! The buy back idea is priceless! (Shoot, wish I'd thought of that years ago!)
I once put everything in name-marked tubs under a bench in the mud room...if they couldn't find something, they were supposed to look there. It was absolutely astounding to me how nearly all those things stayed in those tubs so long NO ONE remembered who'd left them out or why they needed them. You might not make much on the buy-back, but still.....!
I finally got my 15 year old DD to get herself ready and in the car on a school morning by refusing to put my feet on the floor until she was heading down the stairs to the car. The deal was, wake me 1 minute before walking out the door, I'll throw on jeans and t and drive her to carpool. SHE was responsible for her own breakfast, her lunch/books/papers/uniforms/details and I WOULD NOT be responsible for getting her out the door. Finally worked so well, 15 years ago, that I still hate to get up until it's well into the day, LOL!
Jan in VA