By not fulfilling your responsibilities as a landlord to protect yourself you will end up reacting as opposed to proactively acting.

You've fulfilled your one year owner occupant commitment, and a job transfer is also a legit reason for moving within the first year.  

The idea here is to make money and that requires tenants who are happy in their units and who have a constructive relationship with you such that they fulfill their side of the bargain while you fulfill yours.

@Katherine Bernas, It depends on how you set up the rental contract, assuming both are responsible for fulfilling lease agreement until it expires.  

They either never inforce rules or they molly coddle the tenant fulfilling their ever whim to keep them happy.

I am not a bank, social work, church group, family member or friend.If you are a good tenant you will pay on time, If you can not I will do what I can to help you move to more affordable housing.Remember you do not have a good tenant if they do not fulfill their one primary responsibility of paying in full and on time.

The person who takes over a contract, becomes responsible to fulfill it.  

Also as difficult as it is for many landlords to do you must accept the fact that discrimination is part of what you may have to do to fulfill your criteria for tenants.

What I read about your exchange is that the landlord insist on fulfillment of the rental contract.

As long as you arent denying them as a tenant based on their age, race, sex, sexual orientation, religion, disability status, and familial status.When I accept section 8 tenants I also make sure they pass the same credit and background check as all of my other tenants.