I don't know a whole heck of a lot about Mortgages but just for the heck of it I'll talk about it anyway. The main thing that I DO know about mortgages is that if you're not careful you can land yourself in more debt than you know what to do with OR how to pay off.
I am not a hamster, there are some simple things to keep in mind however that even I can think of. One of the first things to consider is that you don't want to just jump in and sign up for the first offer that's willing to lend you money. You need to Compare mortgages, hold each source up and compare the terms, what you're required to do, what the lender is required to do, what recourse you have in the event of problems. What happens if you get laid off, and so on.
Then there's the idea that you're employed, you make decent enough money, but your credit rating is swirling around in circles in the porcelain convenience. You can't just go to the same lender that the guy down the street with the perfect rating uses because they'll laugh you out of the place. Instead you have to look into lenders that deal in bad credit remortgages. This is not generally the best option in the world but if you do it right, you can use it to repair the credit rating as you faithfully make payments.