My landlord wants to move into the flat I rent and live with me. Do I have to let them?Beta*

No. Renting a whole flat gives you exclusive possession, and the landlord has no right to live there with you. If they want the property back to live in, they must serve a section 8 notice using the "landlord moving in" ground. That means at least four months' notice, and it can't be used in the first 12 months of the tenancy. After that only a court can end your tenancy. Threats to charge you their hotel bills, to evict you, or to sue you for refusing are attempts to pressure you. Keep every message, and contact your council's tenancy relations officer.

On this site: Section 8 notice checker

Sources: Shelter: harassment by a private landlordShelter: section 8 notices