If you want certainty you have to give it as well.In principle, why not ? In any contract the terms binding the parties do not have to be mirror images of each other. They can be quite different. If we want to move towards more professional (rather than casual) landlordism there would seem to be merit in this. The landlord buys /builds the investment property for long term rental. He/she is not going to move it to another location. The renter may have to move. The renter should be tied to certain conditions to protect the landlord but not necessarily a 5 year lease.