We had a joint AST. So the landlord says we are liable to each other, which I could understand if my housemate had not given a month notice. Also, in the new AST we have now signed from the 1st of March, which is the same model as the old one updated by the National Association of Landlords, there is a little note that says: "Notice to leave by one individual tenant will end the tenancy for all tenants." And I believe this probably applied to the last one as well. What do you think? Thanks

My two housemates and I were on a fixed term 6 months AST that became periodic in October. In December one of my housemates gave her notice to the landlord and said she'd be leaving at the end of January. We foud a new housemate for the 1st of March, and me and my remaining housemate paid only our part of the rent for February (£400 each). The landlord is now asking us for the other £400 but I'm not sure if we have to pay the money? For me, the AST stopped on the 31st of January. We warned him we only found someone for the 1st of March, and asked him if it was ok to start the new AST on the 1st of March instead of the 1st of February and he said it's fine. So my question is, do we owe these £400? Was the AST still valid in February even though our housemate left giving 6 weeks notice? Many thanks for your time