I have a question and am wondering if anyone can help.

I took out a 10 month AST on a shared property. I have to leave the house, it´s not an option to stay. I´ve contacted the housing agency about the agreement and rent and they´ve said that I have to keep paying rent until the end date which is another 2 months. It´s a seperate agreement just for myself, not the house as a whole. I have to move to another house so I can´t afford two lots of rent.

When I came to the office to sign the agreement it was fairly busy. So I was reading through it with the admin person but she had to go and deal with someone else. So she asked someone, whose else to witness it. What this other woman did instead of either signing it or witnessing it was to sign the admin persons name herself and then witness it as herself. So therefore surely it isn´t legally witnessed? Would that be grounds for the agreement to be invalid?

Looking at my agreement, I can't see anything about having to leave the house early other than in relation to nonpayment of rent. The situation, in short, is that I opened a couple of letters that were for my housemate and also took a possession of theirs that did not belong to me. Though they have found a couple of other things in my room that they say were theirs which I actually am disputing. They have contacted the police for an incident number apparently but they're not actually taking it further and the police haven't even spoken to me. I actually tried calling the police myself to talk to them about it rather than waiting for them to come to me and they said that they didn't need to talk to me and wouldn't be proceeding with matters. Is this grounds for me to be pushed out of the house?

Any advice would be greatly appreciated.

The situation with the signing of the contract is largely irrelevant. You've signed a 10 month AST and need to abide by the terms of it. If you want to leave, you can give the landlord a months notice but the contract cannot end (without the landlords consent) before the end of month 10. As such if you chose to leave the property, you would still be liable for rent, and if you chose not to pay it, your landlord would be perfectly within his rights to pursue you for it.