Is this an AST please?
Assured shorthold tenancy agreement?
If this is an AST then you are only liable for the dates of the original AST unless you sign a further guarantor agreement.
However, for security, you could always write to the landlord making clear that you do not extend your guarantee beyond the original AST.
Can I clarify anything for you?
He may well try to argue that you are guaranteeing their full occupancy but that is just plain wrong in law.
You are liable for the period for which you guaranteed and no more.
All the best.
Please remember to rate my answer.
Well, they would say that.
they will try to argue that.
It will not succeed unless you agreed that in writing.