Tenant would like evict their now adult child

[Heath Donnald]

My tenant has a young adult child that was on the lease as a minor. Domestic issues has her asking about how to force him to move out. Two options I see as a landlord 1) If lease has been violated, eviction notice could be sent. 2) Request a new lease be signed due to new terms (whatever I decide they may be) and then not approve the adult child to be added.

Has anyone else dealt with a similar issue or have a recommendation? I don't want to wade into a domestic issue, but willing help if there's a good way. Thanks.