Ask a landlord-tenant lawyer and get answers ASAP
Hello and welcome! My name is ***** ***** I am a licensed attorney who will try my very best to help with your situation or get you to someone who can. There may be a slight delay in my responses as I research statutes or ordinances and type out an answer or reply, but rest assured, I am working on your question.
Do I have the right to evict?
If the tenant actually moves in the other family members without getting specific permission from you, then yes, that is a lease violation and you can give them a notice of violation and a time to cure and then pursue a formal eviction if they don't cure the breach.
If it were me, I would respond stating that the lease is clear that there is an occupancy restriction without formal approval from you and moving in the other family members would be a lease violation that would be grounds for eviction.
Sometimes you have to draw a line for tenants reminding them that you are the owner and control the terms of the lease.
As an aside, in addition to being an attorney, I have also been a landlord for over 26 years...