If you are a sex offender with no restrictions dealing with children or where you live, is it legal foryour parole officer to notify your landlord?

It is not illegal for your parole officer to notify your landlord that you are a convicted sex offender because based upon what you have written, you are. Albeit the contact with your landlord over the subject could be considered improper, under the terms of your parole agreement most likely the probation officer was allowed to do what he or she did.