I decided I can no longer cope with the agression that of some of the sharper chains, but am now stressed by the inefficiency/unprofessionalism of a new local agent. I'm not sure I can do this any longer, though am effectively stuck as the property is owned by my mother so falls into my remit as her Attorney. Money obviously does not go to me, so I am relaxed about fees.
So...a nice helpful, supportive agent! The flat is a modern 2 bed in Westminster, so reasonably popular. Tenants are likely to be international/ex-pat so its not easy to do myself.