Hi there UKYorkie,

I would be cautious when people are quoting these types of "guarenteed" returns to you.
The fact is if you buying off plan say for a development 2 years till completion does ANYONE have the foresight to predict the state of the rental market at that stage. We can make informed approximation's but again unless these companies give you some kind of financial guarantee (ie renumeration of lost rent if not upheld) most of these gurantee's are nothing more than a sales tool used by developers.

Regards
Paul