Hello Jonathan,
If a tenant is in violation of the lease terms (i.e. getting a pet dog at your "no pets" property), then this is a matter that the property manager (Renters Warehouse) should address. While you wait for your response from the PM, review your property management agreement as it should outline the process they use to deal with lease violations. Hopefully they are reputable and have that outlined for you.
In case your PM does not address lease violations as part of your contract, you might want to educate yourself about your rights as a landlord using a local landlord tenant association before taking any further steps. I pay about $100 a year to my local association and they have a member hotline and resources available. Here is a directory for your state:
https://www.thelpa.com/lpa/associations/minnesota.htmlI am not familiar with MN laws, so your property manager or local landlord association will be the expert on which notice of violation or termination may be applicable. In Oregon, we usually start with a "violation" = a warning with an opportunity to resolve the issue. If they remove the pet (which requires subsequent inspections by your property manager), then the issue is resolved. If they do not remove the pet, the next step is a notice of termination. Then, an eviction action can be brought against the tenant for non-compliance with the lease, and you will likely have to go to court to testify since you are the one that observed the dog at the property. Keep in mind that evictions can be costly, and are about getting possession of your property. In Oregon, tenants have the right to ask for a reasonable modification to the lease to allow the animal to say under the ADA for an assistance animal (which does not meet the same standards as a trained service animal). In Oregon, the tenant can make this request after being served a violation and or termination notice and the landlord generally must make this accommodation. No deposit can be charged for assistance animals. The path of least resistance may be altering your policy, and having a damage deposit for the dog.
One of my tenants asked me to change my no pets policy so they could get a cat after being in my rental for a year. They were excellent tenants, paid on time, and kept the place clean, so I agreed to accept a deposit and allow the cat. When they moved out, the house was in great condition and I was able to return their pet deposit. If they had not been taking good care of my rental, I would not have agreed to the alteration of my pet policy.
I hope this helps!
Melissa