A landlord cannot lawfully remove you, change the locks, threaten you or cut off essential services instead of following the proper termination process. Keep evidence such as messages, photographs, notices and details of witnesses, and contact the RTB promptly about dispute resolution; the outcome depends on the facts of your tenancy. If you are locked out, threatened or in immediate danger, contact An Garda Síochána, and consider speaking to a solicitor about urgent legal remedies. Threshold or Citizens Information may also help you understand your options and find local support.