Colorado state law (Colo. Rev. Stat. § 38-12-509) prohibits landlords from retaliating against tenants.
It is illegal for a landlord to retaliate against a tenant in Colorado who has exercised the legal right to complain to the landlord or to a government agency, such as a building or health inspector about unsafe or illegal living conditions that violate the warranty of habitability.
The kinds of retaliatory acts covered by Colorado law include terminating a tenancy or filing an eviction lawsuit; increasing the rent; or decreasing services, such as locking the laundry room. Tenant must prove actual violation in order to prevail. Any termination, rent increase, or service decrease that follows a complaint is presumed to be not retaliatory (timing alone of such actions will not make them retaliatory).
For advice on how to respond to—and prove—retaliation, see the article Landlord Retaliation.
For an overview of tenant rights under Colorado landlord-tenant law, and resources for filing complaints, see http://dola.colorado.gov/app_uploads/docs/Renter_booklet_2009.pdf.
For state law on landlord retaliation, see Colo. Rev. Stat. §â