Lease Cancellation Question from Landlord

[Chris Svendsen]

I have a single family home used as a student rental.  I have a tenant who signed a two year lease but wants out after the first year.  I had something pop up in my brain after talking to her as to whether I could actually let her out of the lease legally.  What I mean is that the lease is for two years.  If i let her out after first year is that setting me up to where if I do not let someone else out of lease I am breaking some fair housing law?  Reason I ask is I had another tenant before who wanted to get out of lease and told her no.  Now, I am possibly going to let this tenant out of lease with agreement that security deposit will be lost and she is responsible to assist in finding a replacement, however would not be responsible for any remaining rent due after the first years payments.  

If I allow her out of lease a year early do I now have to let anyone out of lease if they ask?  If so, while lease states tenant is responsible for remainder of lease if break would I be okay to have a lease breaking fee?  Maybe a quarter of the remaining lease amount due?  This is for a building in central Pennsylvania.  Any input you have be welcomed.  I don't want to let one tenant out then have another say they want out and run into legal issues when I tell them sorry but no.  Thank you.

[Christopher Smith]

In my leases, a tenant that wants to break a lease early is charged for all time until a new tenant is found and bears any expenses directly attributable to the turnover.

This has worked out well for for me, 

tenant gets the release sought, 

no costs to me (neither lost rent nor out of pocket items), and

everyone is treated equally per standard lease terms. 

Only exception is for military types who can under certain circumstances break the lease without these additional charges.