1) The first step is to check whether there is a clause in the lease contract between the landlord and the second landlord that allows subletting the house. Even if there is this clause, it is best to ask the landlord when signing the contract with the second landlord. I sign. Only in this way can you have the ability to protect your rights when problems arise.

2) In a situation like yours, the signature of the second landlord can only be used as evidence to sue the second landlord for fraud.

3) If the house cannot be sublet, the landlord I have the right to drive you away.