Substantial Violations

Colorado law provides that every lease contains an implied term that the tenant shall not commit a substantial violation while in possession of the premises.

Examples of Substantial Violation
A substantial violation means any act that endangers the person or willfully and substantially endangers the property of the landlord, any joint tenant, or any other person living on or near the property, or occurs on or near the premises, and constitutes a violent or drug-related felony. The commission of a substantial violation is a breach of the lease and subjects the tenant to eviction.