"Lotus light not too sure why you would have sold at 50% less than you bought at just to get out of the work which could have been taken over by a rental agent for a fee."
We sold them to buy this house - our home. The fact they were sold at a 50% loss is just how the property market goes and landlords take that massive risk and tenant's. Most success life is in part about taking risk and plenty of those risks fail.
The fact it was a relief not to be saddled with all the repairs (and many many landlords do not want to pay massive fees to agents when they already almost make a loss on their place so that is not a solution although making tenants legally liable for things like new boilers and repairs and painting as is the case in some European countries might help).
The price of the flats will be higher than when we sold them but many landlords have no choice when they sell as they are moving towns for work or because of their partner's work or there just happens to be the latest property slump as we had in the 70s and then the 90s crash.
I certainly agree that if you buy a property and keep it for 40 years even with inflation you are likely to make a capital gain (taxed at 28%).