Most landlords assume eviction is a last resort they'll never need. Then it happens, and they realize they have no idea what they're doing.

And that's not a knock on anyone. The process is legitimately confusing, especially here, where state law and local ordinance stack on top of each other and judges scrutinize paperwork like they're getting paid by the error. We've watched owners do everything right for months, then make one procedural mistake and lose 60 days of rent while they restart from zero.

This guide covers how the eviction process actually works in Colorado, what can go wrong at each stage, and why getting the foundation right matters more than moving fast.

In This Guide

Before Any Notice: Your Lease Has to Hold Up First

A lot of eviction stories start in the wrong place. Landlords focus on the tenant's behavior when the real problem is a lease that can't support an enforcement action.

Colorado Changed the Rules in 2023 and Most Owners Missed It

Colorado HB23-1120 went into effect in 2023 and rewrote significant parts of landlord-tenant law statewide. Late fee caps, notice requirements, lease provisions — all of it changed. Landlords who downloaded a Colorado lease template from the internet before 2022 are very likely out of compliance right now, even if they've never been challenged on it.

One owner came to Denver Leasing and Property Management mid-crisis after discovering their Capitol Hill condo tenant had added two unauthorized occupants and a dog. Because the owner had never issued a formal 10-Day Notice to Comply, they had no legal standing to file for eviction yet. The situation had already stretched four weeks by the time they called us. Four weeks of a problem getting worse, avoidable entirely with a proper notice on day one.

We've seen this pattern dozens of times. The tenant did something wrong. The landlord's own paperwork made it unenforceable.

Denver Adds Its Own Layer

Denver City and County has its own tenant protection ordinances that layer additional requirements on top of Colorado state law, meaning renters in Denver may have protections beyond what state law alone provides. So Denver landlords are not just managing compliance with one set of rules. They're managing two, simultaneously.

Before you serve any notice, your lease needs to be clean. Otherwise, everything you do next is built on a foundation that a judge can collapse in about 30 seconds.

The Right Notice for the Right Violation

Colorado law requires different notices for different violations. Using the wrong one is not a technicality. It's a dismissal.

Nonpayment of Rent: The 3-Day Demand for Payment

Under C.R.S. § 13-40-104, a landlord must serve a Demand for Compliance notice before filing for eviction due to nonpayment. The period a tenant has to pay or vacate is between 3 and 30 days, depending on the terms of the rental agreement.

At our average portfolio rate of $3,000 per month, one month of unresolved nonpayment is $3,000 in lost income before you've spent a dollar on legal fees. Getting this notice right the first time matters.

One critical and often missed rule: if you accept any rent payment after serving this notice, you've likely waived your right to proceed with the eviction on that basis. Full stop. Accepting even a partial payment can restart the clock entirely. We've talked to owners who accepted $800 of a $3,000 balance just to get something, not realizing they'd just handed the tenant more time and killed their case.

Lease Violations: The 10-Day Notice to Comply

For violations that aren't nonpayment (unauthorized pets, unauthorized occupants, noise complaints, property damage), Colorado's landlord-tenant laws — updated in recent years — require landlords to provide written notice to comply before pursuing eviction; the required notice period may vary depending on the property type and applicable local rules, so landlords should verify the current requirement with a qualified attorney. The tenant has 10 days to fix the violation or you can proceed to eviction.

Document the violation before you send the notice. Photos, written communication records, any evidence that the violation exists and that the tenant was aware of it. A judge at the Denver County courthouse on West Colfax will want to see a paper trail, and "I told them verbally" is not a paper trail.

How the Notice Must Be Served

Here's where a lot of owners get tripped up, and it's completely avoidable.

Colorado law (C.R.S. § 13-40-108) specifies exactly how eviction notices must be delivered. Personal delivery to the tenant, posting on the door plus mailing, or other approved methods. Text message does not qualify. Email alone does not qualify.

We worked with an owner who self-managed a Washington Park single-family home and served their 3-Day Demand for Payment by text. When they filed the Forcible Entry and Detainer (FED) lawsuit, the Denver County court dismissed the case immediately. Improper service. The owner had to restart the entire process from day one, costing them an additional $3,000 in lost rent while they got a process server, served the notice properly, and waited through the cure period again.

Process servers in Denver typically charge $75 to $150 per serve. Pay it. It is the cheapest part of this entire process.

Filing the FED Lawsuit

If the tenant doesn't pay, vacate, or cure the violation within the required notice period, you can file a Forcible Entry and Detainer lawsuit in Denver County court.

Filing fees run $300 to $500 depending on the court and case type. That's your entry ticket. From there, the timeline under normal docket conditions at Denver County looks roughly like this:

• FED filing: Day 1
• First court hearing: Approximately 7–14 days after filing
• Writ of possession (if uncontested): Typically 30–60 days from first notice to resolution

Those 30–60 days assume nothing goes wrong. A contested eviction, or one where the judge finds a problem with your paperwork, adds more time and more cost. Total realistic cost of a contested eviction in Colorado, including filing fees, attorney fees, lost rent, and turnover, runs $1,500 to $3,500.

What Denver Judges Actually Look At

The judges handling FED cases at Denver County are not rubber-stamping these filings. They look closely at notice timing, notice formatting, and whether required statutory language is present.

One day short on a notice period. Missing a disclosure line. Wrong service method. Any of these can result in dismissal at the first hearing. We've seen it happen more than once, and so have a lot of frustrated owners who came to us after.

Gavin, our leasing agent, walks every owner through our notice documentation process before anything is filed. The checklist exists because one missed line in one notice cost a client 45 days of rent. We're not repeating that lesson.

The Late Fee Trap That Complicates Evictions

This one catches owners who haven't updated their leases since 2022.

Under Colorado law (C.R.S. 38-12-105), late fees are capped at the greater of $50 or 5% of monthly rent. The 5% figure is the practical ceiling for most Denver rentals. On a $3,000 rent, 5% would be $150. So the cap is $150.

An owner managing a townhome in the Platt Park area had a $150 per month late fee written into a pre-2023 lease. When they attempted to file for eviction based on nonpayment, the tenant's attorney pointed to the illegal late fee as evidence of an improper lease. What should have been a clean case became a complicated one. The late fee didn't cause the eviction, but it became the weapon that slowed it down.

If your lease has a late fee above $50, fix it before you ever need to use it in a legal proceeding.

Emotional Support Animals and the Eviction Mistake That Creates a Bigger Problem

A brief but important detour before we move on.

ESAs are always permitted in Colorado regardless of a property's no-pet policy. A landlord who attempts to evict a tenant over an emotional support animal is exposed to a Fair Housing Act complaint and a potential HUD investigation. The costs associated with a Fair Housing violation, at the federal level, can reach up to $26,262 per incident for a first offense when adjudicated by a HUD Administrative Law Judge.

We tell owners this upfront during onboarding. If a tenant submits ESA documentation, it goes through a proper verification process, not a denial. The eviction you think you're filing over a pet can very quickly turn into something that costs far more than any pet damage ever would.

Denver Rental License Requirements: Yes, This Affects Your Eviction

Denver has a rental licensing program, and it matters here for a reason most owners overlook.

If your property is operating without a valid Denver rental license, you may face complications in any enforcement action, including eviction. Judges and tenant attorneys are aware of the licensing requirements. Tenants who do their research (and many do, especially in Capitol Hill and RiNo) know to check the Denver rental license lookup tools available through the city.

We manage the Denver rental license requirements for properties in our portfolio. We know what the Denver rental license inspection process looks for and we keep those records in DoorLoop, where owner statements, maintenance history, and compliance documentation live in one place. Owners who self-manage often let the license lapse because nobody reminded them it needed renewal. That is a problem to solve before you're standing in front of a judge.

Month-to-Month Tenants Require Extra Caution

Colorado is increasingly protective of long-term tenants at lease expiration. Landlords ending a month-to-month tenancy need to use the correct non-renewal notice, with proper timing and statutory language.

Improper non-renewal notices have been successfully challenged in Denver County court. If you're trying to end a tenancy without cause, the process is more complicated than sending a text that says "I need the house back by the end of the month." We've heard versions of that story more times than we'd like.

The rule here is simple. If you're not sure, ask before you send anything. Sending the wrong notice is far worse than sending nothing while you figure out the right process.

Why Self-Managing Through an Eviction Is High-Risk

We don't bring this up to scare anyone. Self-managed properties make up a lot of the Denver market, and plenty of owners handle straightforward tenancies just fine on their own.

But eviction is not a straightforward tenancy situation. It's a legal proceeding in a jurisdiction that scrutinizes landlord compliance closely. The stack of rules (state statute, Denver ordinance, Fair Housing law, licensing requirements) is not forgiving of honest mistakes.

We inherited one property at our $1,500 onboarding rate from a landlord whose previous manager had left the lease missing required Colorado disclosures entirely. Within 60 days of onboarding, it was clear the existing lease couldn't support a clean eviction filing. We had to cure the paperwork before any enforcement action was possible. That delay cost the owner time they didn't have.

Jenny, our owner, has said more than once that most of the expensive evictions we help owners through are not the tenant's fault. They're the result of lease decisions, notice decisions, and documentation decisions made months or years before anyone stopped paying rent. A screened tenant in a compliant lease with a documented violation history is an eviction that wraps up in 30 days. Everything else is the cost of a problem that started earlier than the first missed payment.

What a Property Manager Actually Does During an Eviction

Having a property management company doesn't mean you never face an eviction. It means you go through it prepared.

We handle:

• Notice drafting and service: Using the correct notice type, with proper statutory language and legally compliant delivery
• Documentation: Lease records, payment history, violation correspondence, and maintenance logs, all organized and ready for court
• Timeline management: Tracking cure periods, filing deadlines, and court dates so nothing slips
• Compliance review: Catching issues in the lease, late fee structure, or rental license status before they become a courtroom problem
• Coordination with legal counsel: For contested cases, connecting owners with Colorado landlord-tenant attorneys who know the Denver docket

What we absorb is the procedural weight of doing it right. Owners who've been through a self-managed eviction and then gone through one with professional support consistently say the difference is significant. Learn more about our Comprehensive Property Management Services in Denver.

If You're Already in a Situation That's Gone Sideways

Sometimes owners call us when things are already complicated. The notice was wrong. The lease is outdated. The tenant has legal representation and the owner doesn't.

We can't undo the past, but we can stabilize what happens next. The first step is always the same: stop sending the tenant anything in writing until the paperwork is reviewed. One message, worded the wrong way, can reset your position in ways that take weeks to undo.

If your rental situation feels harder than it should, we're open to a conversation. No pressure, no pitch. Just a look at what you're working with and an honest read on where things stand. You can reach Jenny and the team at (720) 740-6361.

Frequently Asked Questions

What is the minimum notice required before filing for eviction in Colorado for nonpayment of rent?

Colorado law requires a written Demand for Payment notice before a landlord can file a Forcible Entry and Detainer lawsuit for nonpayment of rent. Landlords should ensure the three-day notice period is counted carefully and in accordance with Colorado statutory requirements — consulting an attorney or the Colorado Judicial Branch's self-help resources can help ensure proper compliance., and the notice must be delivered using a legally approved method under C.R.S. § 13-40-108.

Can a landlord in Denver serve an eviction notice by text or email?

No. Text message and email alone do not satisfy Colorado's service requirements under C.R.S. § 13-40-108. Valid service includes personal delivery, or posting on the door combined with mailing, among other approved methods. A notice served only by text will be dismissed at the first court hearing, restarting the entire process.

What happens if a landlord accepts partial rent after serving a Demand for Payment notice?

Accepting any rent payment after serving a Demand for Payment notice can waive the landlord's right to proceed with eviction on that basis. Even a partial payment may reset the clock entirely. Once a notice is served, do not accept any money without first consulting an attorney or your property manager.

How long does an eviction take in Denver?

An uncontested eviction typically takes 30 to 60 days from the initial notice to a writ of possession, given current docket conditions at Denver County. That range assumes the notices are correct, service was proper, and the lease is compliant. Contested evictions or cases with procedural errors can take significantly longer.

What is the maximum late fee a landlord can charge in Colorado?

Under HB23-1120, Colorado caps late fees at the greater of $50 or 5% of monthly rent. For most Denver rentals at or above $1,000 per month, the $50 cap applies. Charging more exposes a landlord to claims of an improper lease, which can complicate or derail an otherwise valid eviction.

Do Denver landlords need a rental license to legally operate a rental property?

Yes. Denver has a local rental licensing program that applies to most residential rental properties in the city and county. Operating without a valid license can create complications in legal proceedings, including eviction. Landlords can check compliance status through the city's rental license lookup tools, and license renewals are a standard part of what we track for properties in our portfolio.

Can a landlord in Colorado evict a tenant for having an emotional support animal?

No. ESAs are permitted in all Colorado rental properties regardless of the owner's pet policy. Attempting to evict a tenant over a properly documented ESA exposes the landlord to a Fair Housing Act complaint and potential HUD investigation, with first-offense federal penalties reaching up to $26,262 per incident when adjudicated by a HUD Administrative Law Judge.

What is the penalty for failing to return a security deposit within Colorado's deadline?

Colorado requires landlords to return a security deposit within 30 days of the tenancy ending, unless the written lease extends that period to a maximum of 60 days. Willfully and wrongfully failing to return a security deposit can result in the tenant being awarded three times the amount wrongfully withheld, plus attorney fees and court costs. Missing it is not a minor administrative slip. It is a statutory violation with a defined penalty. For more answers to common landlord questions, visit our Property Management FAQ.