New Tenant Turned into "Cat Lady" renting a Shared House- advice?

[Heather O.]

New Tenant signed the lease stating she has only 1 small dog, now she has brought home 5 cats to the Shared House she rents.  Other tenants are highly allergic, as am I.  She also forgot to pay rent, so I am thinking 3 Day Notice on Rent non-Payment is best?  It's complicated because she signed a lease for one property and then decided to move into another and when I was updating the lease I learned about the issues and now it seems like we should part ways. 

[Ray Harrell]

If she signed a lease on one property, why didn't you do another lease on the property she actually moved into? Leases are not "blanket" and don't transfer between properties. Technically, if she has no written lease for the property she is in, then she is on a month-to-month verbal agreement. The terms of your written lease don't apply.