Take your time to go through the Mortgage Illustration which shows you everything about the product which includes all fees including arrangement, product, broker and valuation fees and also gives you details on any exit penalties or early repayments. It also explains the rate that it will go to once the initial product is finished and if there is a free valuation or legal costs.
Ignore the amount specified under legal costs as unfortunately, most lenders keep this very very low and unrealistic to reduce the Annual Percentage Rate.
Tags: BTL