CO HB1171

Prohibits landlords from evicting residential tenants without just cause, which exists when a tenant fails to pay rent after written notice, commits a substantial violation without cure, or conditions for no-fault eviction are met.

Establishes no-fault eviction grounds limited to: demolition or conversion of property, substantial repairs/renovations requiring 60+ days vacancy, landlord/family member occupancy, mission-driven organization funding termination, or sale of single-family/townhome/condo with 90 days' notice.

Requires landlords conducting no-fault evictions to provide relocation assistance of 2 months' rent plus 1 additional month if vulnerable residents (under 18 or over 60, low-income, or disabled) live in the unit.

Mandates landlords provide 48-72 hours' written notice (in tenant's primary language) before entry for reasonable business purposes, and 60-90 days' notice before no-fault evictions depending on tenancy length.

Applies to all Colorado residential premises except short-term rentals (under 30 days), owner-occupied single-unit properties, and certain mobile home spaces; takes effect 90 days after legislative adjournment unless referendum petition filed.