Are you an independent adviser?
If your adviser is independent they should cover the full market, meaning they can find your mortgage from all of the available options. If you are buying a new build, your best option is to speak to a New Homes Mortgage Adviser (NHMA). They will have an overview of the entire market and will advise accordingly, offering the best advice for your situation. By contrast, advisers tied to a specific lender won’t necessarily present you the most suitable deals, just the ones associated with their lending partners.
What are your qualifications?
Ask this as early as possible. Mortgage advisers have to be qualified to provide advice, so always make sure you check. They’ll need to have a qualification that’s recognised by the Financial Conduct Authority, such as the Certificate in Mortgage Advice & Practice (CeMap).