Ongoing financial settlement discussions are taking place, soon to be ex DH has found a flat, but won't move out until we have financial settlement agreed. I have said I will pay entire mortgage (joint names) when he moves out and until final settlement agreed at Decree Nisi stage. I suggested that this is a financial benefit to him so took it into the discussion about settlement figures but> he is now saying he can pay charge me 'ground rent' according to his solicitor. Is this right and how much does it work out to?