The fact that the postmaster would issue a letter claiming USPS as the problem should indicate a limit to liability, agreed upon in the fine print when the sender fills out the forms.
that's all I can figure out of this situation.
But it wouldn't be her, it'd be her employer.
Either way, I'd dump this idiot landlord and find another place. A church or something would work great in this case until something else comes available.
I guess I need to clarify, I was trying to make a case that it was out of my control to pay the rent on time due to the loss of this express package or something like that.