Final answer:
The legal process to remove Tina, due to the breach of the lease agreement, is known as actual eviction.
Step-by-step explanation:
The legal process to remove the tenant is known as actual eviction.
In this scenario, Tina has breached her lease agreement by keeping a cat in her apartment, despite the prohibition on owning pets. The landlord has given her a written reminder and requested her to remove the pet, but Tina has refused. As a result, the landlord has decided to remove Tina from the apartment due to the breach of the lease agreement. This process of removing a tenant for violating the lease agreement is called actual eviction.