Bear in mind Rog that your 'sensible decent estate agent' ultimately wants to sell you a property, so will paint a rosy picture of being a landlord!
There are areas of the UK where you can achieve 10% and more on your investment, however I have my doubts whether you can in London, the South East or the South in general....

The high yielding properties will generally be in run down, neglected and deprived areas, where the properties are cheap and the risk of bad tenants is higher. The risk/return ratio is just as important in property investment as it is in stocks and shares!

Managing agents are fine when it comes to collecting the rent and charging their commission, but when it comes to dealing with a bad tenant they generally are useless beyond writing a letter or two....

The other thing with agents is when you need repairs done they will often charge 10% of the cost as a management fee so there is no incentive for them to get a decent price for the work. I had a quote of £1000 from an agent once for a roof repair and when I told him I'd find my own roofer he magically found another who did the work for £500!

I've rented to a few single Mum's over the years and in my experience the girls are usually OK. It's the arsehole blokes that they hang around with that cause the problems in terms of antisocial behaviour, damage to the property and rent arrears cause they've spent their girlfriends rent money on booze and drugs etc etc

Property investment can be a good way to make money, but it is far from hassle free!!
