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Colorado Notice to Terminate Tenancy (JDF 99 B)

A Colorado notice to terminate tenancy (Form JDF 99 B) is sent by a landlord to request the tenant vacate the property within a specified period. It can be used as notice not to renew a lease, terminate a month-to-month lease, and evictions for substantial or repeat violations.
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Reasons for Termination (3)

  1. Non-Renewal of a Periodic Lease – This is used when not renewing a fixed-term lease or month-to-month lease (tenancy at will). Notice periods vary depending on the fixed-term length of tenancy:[1]
    • 1 year of longer – 91 days
    • 6 months; but no more than 1 year – 28 days
    • 1 month; but not more than 6 months – 21 days
    • 1 week; but no more than 1 month – 3 days
    • Less than a week – 1 day
  2. Substantial Violation (3 days’ notice) – Any act by the tenant or their guest that:
    • Endangers any person living on or near the property;
    • Endangers the premises;
    • Drug-related felony that is conducted on or near the property;
    • A criminal act in violation of federal or state law or local ordinance that carries a potential sentence of incarceration of 180 days or more and has been declared a public nuisance.[2]
  3. Repeat Violation (10 days’ notice) – Any repeat lease violation of the tenant where a Demand for Compliance (JDF 99 A) was previously sent to the tenant.