Evict for nonpayment of late fees?

[Kathy Brasby]

We have a tenant who consistently pays late in the month and has refused to pay the late fee. Our lease calls for a $50 late fee if rent is not paid by the 15th of the month (this per our lawyer's suggestion) and our tenant generally pays around the 22nd or 23rd. She owes $200 right now and we don't see her ever paying them. We'd like to evict her. Can we do so just on late fee nonpayment? We're in Colorado. Thank you for your input.