Most new landlords spend a lot of time and attention on finding and approving a tenant, then move through the setup steps quickly, sometimes skipping a few entirely. The items skipped at the beginning show up as problems two or three months in: a lease that does not say who pays for the water softener salt, no record of what condition the unit was in at move-in, no documented process for maintenance requests.
This is a practical checklist built from what actually matters in the first months of a tenancy. Not every item applies to every property or state, but these are the things that consistently prevent headaches later.
Before You Market the Unit
Confirm what you are legally required to disclose. Colorado, like most states, has specific disclosure requirements for landlords: lead paint for properties built before 1978, known material defects, and in some cases specific local disclosures. Identify what applies to your property before you list it. Failing to disclose what you are required to is a legal exposure point, not just a best-practice miss.
Set a rent price you can sustain. Look at comparable units in your exact neighborhood that are actively renting, not listed. What you need to cover your costs is relevant, but the market does not care about your mortgage payment. Pricing above market for your property type means longer vacancy. Pricing correctly means fewer days empty.
Decide on your pet and smoking policy before you write the listing. These generate the most inquiry questions if you leave them out. Answer them in the listing itself.
Before You Sign the Lease
Use a lease written for your state. A Colorado-specific lease includes required disclosures, correct deposit return timelines, and appropriate landlord entry provisions. Generic leases downloaded from national sites sometimes include clauses that contradict Colorado law, which weakens the entire document.
Run a proper tenant screen. This means a credit report, a background check, and income verification for every adult who will live in the unit. In Colorado, you can charge a reasonable application fee to cover the actual cost of the screen. Do not skip the income verification because the applicant seemed impressive in person or communicated well. Income verification is where most tenancy problems reveal themselves before they start.
Document your screening criteria in writing before you review applications. You should be able to show that you applied the same criteria to every applicant. This is both a fair housing compliance practice and a practical protection: if you ever decline an applicant and they push back, you have written criteria you applied consistently.
Collect the deposit and first month's rent before handing over keys. Do not schedule a move-in date until funds have cleared. Personal checks for deposit should clear before move-in day, not on it.
Before Move-In Day
Walk the unit and document its condition. This is the single most important step that new landlords skip or do hastily. Photograph every room from multiple angles, note any pre-existing issues on a written condition form, and have the tenant sign the form at or before move-in. If there is a carpet stain in the bedroom already, that stain is photographed and noted. If there are scuffs behind the bathroom door, those are noted. Anything not documented is potentially contested when the tenant moves out.
Test everything that should work. Every outlet, every light fixture, every appliance you provide, the dishwasher cycle, the disposal, the HVAC in both heat and cool modes, the water pressure. Do this before the tenant arrives. Discovering a non-working outlet on move-in day, rather than two weeks before, means you are starting the tenancy with a repair already pending.
Provide the tenant with a written maintenance contact process. Who do they call? How? What counts as an emergency that warrants an after-hours contact? What is the expected response time for non-emergency requests? Tenants who know what the process is use it appropriately. Tenants who have no guidance use whatever approach occurs to them, which is often a text to your personal cell at inconvenient times.
Change the locks. Every time. You do not know who had a key from the previous tenancy, the previous maintenance situation, or the period between tenancies. New locks or a rekey before every new tenant is a basic security step. In many states, it is also a required landlord obligation. In Colorado, if a tenant requests a lock change after a documented security concern, you are required to comply promptly.
At Move-In
Walk the unit with the tenant. Have them sign the condition form after seeing the unit themselves. Note anything they point out. Two signatures on a condition form, dated on move-in day, closes most disputes before they start.
Collect all keys, fobs, and garage remotes and document them. Note how many of each you gave the tenant. When they move out, you will expect the same count back. Missing keys at move-out are a legitimate deduction; knowing the original count is required to make that case.
Confirm utility account transitions are complete. For utilities the tenant is responsible for, confirm they have established accounts in their name and that the service has transferred. You do not want to be receiving utility bills for a unit where the tenant is supposed to be managing that account.
In the First Thirty Days
Set up your record-keeping system, whatever form it takes. This means somewhere to store: the lease, the signed condition form, move-in photos, rent payment records, and any maintenance communications. The format does not matter; the consistency does. A folder per property, per tenant is sufficient. What is not sufficient is a mix of paper files, phone photos with no labels, and emails scattered across multiple inboxes.
Establish a rent payment method and stick with it. Whether that is bank transfer, check, or a payment portal, communicate the expectation clearly. The first month is when you establish whether rent comes in on the first or drifts until the fifth. How you respond to the first late payment sets the pattern for the rest of the tenancy.
Know your local resources. Colorado has a landlord-tenant hotline through the Colorado Bar Association's lawyer referral service, and many counties have tenant advocacy resources that landlords can also call with procedural questions. Knowing these exist before you need them is better than researching them under pressure.
What This Checklist Does Not Cover
Checklists handle preparation; they do not handle judgment calls in an active tenancy. How you respond to a tenant who misses a payment, how you handle a mid-lease maintenance request that is genuinely ambiguous about responsibility, whether a specific deduction is worth the relationship friction at move-out: those require your own assessment of your situation. The checklist sets you up to have those conversations with documentation and process behind you rather than scrambling for information after the fact.