Allan Katongole.

Allan works with landlords of every kind. Some are "accidental landlords" who never planned to rent but now let out a first flat. Others are experienced investors running HMOs, which are Houses in Multiple Occupation let out room by room. Allan is comfortable with both.

What Allan cares about is the maths behind a let. He works out your rental yield, which is the yearly rent shown as a percentage of what the property is worth, and he weighs up the tax-efficient ways to hold the loan. As your buy-to-let mortgage broker, he sets each product's interest rate against its lender fees, so the numbers still add up month after month, whether you own a single flat or you are growing a larger portfolio.