Tenants didn't give us the mail until almost two years later

[Miaochan Zhi]

Wondering if anyone else have experienced this issue and how to deal with it.
We asked the tenants to give us the mail.  They never contacted us. Now they are moving out they give us a bag of mail. there is an expired check and a bill that went to collection. I had a fee of $525. additionally, the two attorney letters that was sent were not given to me.
Can I get any of this loss from them? I probably will not do anything. But just wondering.

Thanks,