This sounds at odds with the current legislation, whereby if you evict a tenant on the grounds that you want to sell your rental property, you can not then re-let that property for a 12 month period.
So, if you try to sell when the market is very poor you can't just take the property back off the market and try to re-let until 12 months have passed without facing a very hefty penalty.
The other issue of course is the Council Tax premium being applied to empty properties, which may come down to 6 months, currently 12 months, I believe.
Potentially a catch 22 situation looming for LL wanting to exit the rental market when the housing market is poor.
A barmy situation where you potentially have LL's who cant re-let and improve rental supply in the market at a time where supply is crucial, yet being penalised for having an empty property in the process.