That makes more sense, but it probably still needs a specialist solicitor to make sure all the transactions are done in a way that achieves your objectives, particularly if you need rental tenants to leave so you can sell the individual flats as leasehold. You might also need a managing agent to look after collecting service charges and doing building maintenance, unless you plan to do it yourself. [You probably already know all this, but I'm including it for the possible interest of others!]
Peter Evans ● 80d