Just shooting from the hip here, but it sounds like the contract is between HCR and your landlord. Presumably you are in excess rental accommodation because the Service is unable to provide you with a MQ, so your commitments should only be equivalent to those required of you when renting a MQ. As there is no minimum rental periods for MQs, if you no longer require your "civvy MQ" then you should be able to leave without penalty at any time. It would then be up to HCR to sub-let to someone else for the remainder of the contract period, or accept the loss. That is the risk of being a contracted housing supplier when there are not enough MQs available.
Perhaps a word with Citizens Advice may help?
My assumption here is that HCR is the housing contractor; I have never heard of them.
Last edited by Avtur; 9th Jul 2013 at 18:43.