These warden controlled estates are owned and run by companies. Usually there is a fee to pay upon purchase and sale and maintenance costs.
I don't think that the properties can be rented out, they have to be owner occupied.
Rules are quite strict as far as I know.
The company must be aware or, if not, should be informed of any suspicions and could make initial investigations.
They would not want their reputation tarnished by a possible coercion scandal.
Seems it’s now Harry’s uncle - the Earl of Spencer - having his turn at a “tell all” book.


