QUOTE (dellboy @ Feb 12 2008, 04:32 PM)

If you are in an AST then the notice period will almost certainly be 2 months. The duration of the agreement will normally be 6, 12 or 24 months. A Notice of Possession is normally served two months before the contract is up if they want you to sign another AST for the next period. If not, and you stay on, the contract (post-AST) will still be an implied 2 months and the terms and conditions of the previous AST will apply. The agreemtn is statutory, i.e. it comes into effect automatically to ensure that the previous AST remains in force. If they don't serve the Notice of Possession, then the tenant will normally have the right to stay on into the statutory period.
The terms to search for on Google are "Assured Shorthold Tenancy" and "STATUTORY PERIODIC ASSURED SHORTHOLD TENANCY".
I'm no expert of tenancies without a contract - they're not good for either side.
I would say that the tenants notice period to end the fixed term is actually nothing, out of Courtesy at least one month should be given, This is regardless of what the AST says as the required notice periods are prescribed in the act and contract terms cant trump the law. If the tenancy as lapsed into Statutory Periodic then the notice period is again one month, as this is the period prescribed in statute, if it was 2 months it wouldn’t be statutory periodic would it?
Again all this is academic until the original poster tells us if the contract is still in the fixed term or not.