First time buyers advice please. We need to find out how much we can borrow for a mortgage. We are not ready to buy just yet but want to know what we can borrow as we have a price in mind. Am I right in thinking a mortgage in principle only lasts 6 months and Its not advised to get many of them? We know the house price we need a mortgage for, we know how much deposit we will have in 6 months. Online mortgage calculators are extremely varied. What can we do? Thanks all