There may be a Broker fee for mortgage advice, this will depend upon your circumstances. A typical fee is £400 payable on completion. In general Buy to Lets are not regulated by the Financial Services Authority. Derwent Mortgages Ltd is authorised and regulated by the Financial Conduct Authority. The advice and / or guidance contained within this site is subject to the UK regulatory regime and is therefore targeted at consumers based in the UK. For advice on any of the above, Contact us now. Derwent Mortgages Ltd. Registered address: Croft Farm, Marton Cum Grafton, York, YO51 9QJ. Registered in England under Commpany No 08190587.