Colorado Eviction Notices: Demand for Compliance, Notice to Quit, and What Happens Next

The other renewal-compliance articles cover ending a tenancy at its natural endpoint — non-renewal, month-to-month notice. This is about the different track: ending a tenancy because of something the tenant did, mid-lease. It starts with the right notice, not a court filing.

Nonpayment of rent: a 10-day Demand for Rent or Possession

For unpaid rent, the standard notice gives the tenant 10 days to pay what’s owed or move out. Landlords whose property has a federally backed mortgage, or who receive certain federal benefits tied to the property, generally have to give 30 days instead of 10 — a distinction that’s easy to miss if you’re using a generic template notice.

First lease violation: a 10-day Demand for Compliance or Possession

For a first violation of a lease term that isn’t nonpayment, the tenant generally gets 10 days to fix the violation or move out. This is a cure opportunity — the point is to give the tenant a real chance to correct the problem, not just a countdown to eviction.

Repeat violation of the same term: a 3-day Notice to Quit, no cure

If a landlord already issued a Demand for Compliance for a violation of a specific lease provision, and the tenant violates that same provision again, the landlord generally doesn’t have to offer another cure period. The follow-up notice is a 3-day Notice to Quit detailing the violations, with no opportunity to fix it and stay.

Substantial violations: a 3-day Notice to Quit, immediately

For violations involving criminal activity, drugs, or harm to people — “substantial” violations, not ordinary lease breaches — the law doesn’t require a cure opportunity at all. A 3-day Notice to Quit for Substantial Violation is the standard, reflecting that these situations aren’t treated like an ordinary missed-condition violation.

Filing the eviction (FED) once notice has run

If the notice period passes without the tenant curing (where a cure was available) or vacating, the next step is filing a Forcible Entry and Detainer action — the Eviction Complaint (JDF 101) and Eviction Summons (JDF 102), along with a copy of the notice that was posted, filed in the county where the property is located. The case has to be filed by the property owner or another person or entity actually identified as the landlord on the lease. Service of the summons generally has to happen at least 7 days before the scheduled hearing, by the sheriff’s department, a private process server, or another adult who isn’t a party to the case — with a completed Affidavit of Service (JDF 98) for each person served.

Why matching the notice to the actual reason matters

Using a generic “10-day notice” for every situation — or skipping straight to a 3-day notice for an ordinary first violation — is one of the more common process errors. The wrong notice type can require starting the process over, which costs more time than getting it right the first time would have.

What to check in your own process

• Does your notice template distinguish nonpayment, first violation, repeat violation, and substantial violation — or is there just one generic notice?
• Do you track whether a given lease provision has already had a Demand for Compliance issued, so a repeat violation is handled correctly?
• If your property has a federally backed mortgage, does your nonpayment notice reflect the longer notice period?
• Is your filing paperwork (JDF 101/102, notice copy, Affidavit of Service) organized before you file, not assembled after?

The bottom line

This is a separate track from ending a tenancy at renewal — see The 6 No-Fault Reasons Colorado Landlords Can Still Use to Not Renew for that side. Getting the right notice type, with the right notice period, for the actual reason is what keeps a for-cause eviction from having to restart.

LeaseCheck for Landlords is an educational lease-compliance screening tool. It is not a law firm and does not provide legal advice. Colorado rental laws change; confirm specifics for your situation with a licensed attorney.