"About to inherit a tenant, with 3 pets!"

[Sandy Gabin]

Hello BP family! Long time that I don't write anything but now I am. I am about to buy a multi-family property and when I saw the units, tenants were inside. There is just one tenant that has one dog, one cat and two ferrets. The unit smells awful, and to top it off with a cherry on the top, the tenant smokes which makes the smell of the unit even worse! I found out that the lease will end in September of this year. Since I don't want any pets in the property should I ,

A. Once I meet with the tenant tell her that the pets would need to go 

or

B. Wait until the lease ends in September and tell her that I will not renew the lease because I don't allow pets in the property.

I don't want to look like the bad one, but I would like do this in a professional way. I understand that tenants have a relationship with their pets but at the end of the day, I might have to deal with the cleaning, etc. 

By the way, can I also add in that I don't accept any smoking inside the property? 

What would be best ? A or B?