Letting agents in some regions of the UK are overstating rental returns by up to 25 per cent according to research by Landlord Mortgages. Posing as first a tenant, and then a potential property investor, researchers enquired as to how much a two-bedroom flat in specific developments could be rented for. Whilst London (25 per cent) and Birmingham (13 per cent) boasted the most inflated prices for the second year running other areas of the country showed a different trend. Letting agents in Manchester and Liverpool massively under quoted potential rental returns (-25 per cent and -15 per cent respectively). However, for the second year running Sheffield appears to boast the most honest agents who quoted the same to both tenant and investor.