Ask a landlord-tenant lawyer and get answers ASAP
Hello and welcome! My name is ***** ***** I will try my level best to help with your situation or get you to someone who can.
Does your lease state anything about it being a violation of the lease for the tenant to damage the property?
Does the lease state only 2 dogs?
Have you submitted a written demand for payment of the cost of any repairs or estimates for the repairs?
If so, has the tenant refused to pay them?
Are they current on the rent?
Ok, then that would be damages that would constitute a breach of the lease contract and you could give them a written 3 day notice and demand for payment for any repairs and then terminate and evict if they didn't pay for the cost of any repairs . (Colo. Rev. Stat. § 13-40-104(1)(e.5)(I)-(II)).
The verbal agreement about the dogs would be hard to enforce without anything in writing (email, text, letter) that stated that it was only for 2 dogs.
As for the rent, if they are late, you can give them a written 3 day notice to pay rent or vacate and then pursue an eviction in court if they don't pay.