Dollydrops
Your Mother should be so proud of you. Its great to see in this day and age that a young person is willing to help out when a parent is under financial pressure as its usually the other way around.
Best of luck with the house, I have no doubt but you will get this property really cheap in the new year. Put in a very low offer and work up. Regarding getting a mortgage, there are some lenders still giving out 92% mortgages and in order to qualify I would advise as follows :
Save as much as possible on a regular basis
Dont borrow for car/personal items in the meantime
Spin
Financial Advisor