Tenants moved out but no communication and there are pets left.

[Paul DeBoer]

Hey,

Got a unique situation. A tenant is one month behind on rent, and he has all of a sudden stopped communicating with me. So we started the eviction process.. But, I was getting the feeling that they had moved out. So I went to the property and had a chat with another tenant there and she said " They moved out earlier in the week but I could hear a dog barking and I saw cat in the window. Tenant that is still there said they are still coming by to take care of the animals.  I see three paths to gain possession and please clarify if there is another way. 

First path I see is to go through an eviction to get a writ, and call animal control to get pets.

Second, is to get a signed document stating they are giving possession of the unit back to me and they take the animals out.

Third, get a sign document stating possession back to me but I take call animal control on the animals. 

Is there another way to get possession?