Your landlord can issue you with a number of types of notice, the most common of these being a Notice Requiring Possession or a Section 21 Notice.
The main type of notice that you could receive are a Notice Requiring Possession, also referred to as a Section 21 Notice, or a Notice Seeking Possession, also referred to as a Section 8 notice. Upon issue of one of these most people believe they must give up possession of their property by the date selected by the Landlord within the notice, this is common misconception. The notice is simply the first step a landlord may take to attempt to get a Possession Order against you. A landlord must send a valid notice. The validity of a notice can be checked by a solicitor.
Your landlord cannot apply to the court to issue a claim for possession of their property against you until the notice they have sent you has expired. However if this does happen you would receive court papers direct from the court, again, with this assistance would be available from your solicitor.
If at the end of the court process, which is more often than not a lengthy one, your landlord managed to get a Possession order you still do not have to leave your property on the specified date. Your landlord would have to apply to the court once again for a Warrant of eviction. This would then set the date on which bailiffs will attend the property and change the locks.
If this does not give you enough time to sort arrangements for your living, or if you simply do not wish to move from your property, further action may be available.