I have written my landlord an email and sent it to him months ago declaring my intent to move elsewhere and not to continue renting. My landlord recognized this in his response email.
The thing is, the lease is up and now he is complaining that he wasn't given written notice that I am leaving; he is claiming that unless he finds a tenant for next month (and he is smugly not bothering to look) I will be legally responsible for that month's rent.
I am in Denver, Colorado. What gives?

