The risks are he would have to terminate your lease meaning both of you. Now of the landlord terminates the lease with both of you on it he can sign a lease with just you if he so chooses. Whether he will or not is totally up to him.
The risks are he would have to terminate your lease meaning both of you. Now of the landlord terminates the lease with both of you on it he can sign a lease with just you if he so chooses. Whether he will or not is totally up to him.