Deposit - 60k

My gross income - 28k

Finances gross income - 25k

So the figures above look ok, but my finances income is paid by an employment agency, which lenders have not seemed to want to take in to account. Her current job is going to be for 6 months. But as the lenders are arguing, it could still finish at any time. We are looking at houses of 250k so we really need it to be a joint application otherwise we won't be able to afford a house. Her job is for 6 months, but she will be able to get another job after easily. Also, her parents would be happy to chip in if she couldnt get a job for more than a month.

So i guess I am after advice on whether anybody knows of any mortgages or specific lenders who could help with this situation?

Thanks