My sister is the tenant for 31 yrs. Her 22 yr old granddaughter lives there with her 1yr old baby and she now has started a lot of confusion, as recently as this week end, punching my 44 yr old daughter, we have issued a complaint , but can I get an eviction letter for my niece to move,she is not the one paying the rent. I told her and her mother they have to move, my sister can stay, but I can't come home to
Confusion with them every night, they are volatile, My daughter and I live upstairs, I own the house.

Evict them or her according to local law.