Hi Whitebear.
The word 'limited', in 'limited company', means that the directors of that company only have (very) limited liabilities in terms of the debts of that company (if it goes bust).
If someone sets up a limited company, he has to follow various rules in regard to such things as having the accounts properly audited each year (and then forwarded to Companies House). However, the directors of that company (which often might just mean the guy who set it up and his wife) are free to determine how much profit to take from the company (to put into their own pockets). They're meant to leave enough in the company's accounts to pay any debts but sometimes things go wrong and the company goes bust.
There would be nothing to stop a director from selling his house, and putting the money into the company, to try to prevent closure. But such a move would rarely make economic sense. It's usually far simpler for the directors to let the company go bust. When the creditors come looking for money, the (former) directors can lawfully say 'Nothing to do with us, mate. Get knotted'. They don't owe anyone anything. It was their company which owed the money and that company no longer exists.
It's just the same if, say, you were to order an expensive 3-piece suite from a shop (and pay up front). While you're awaiting delivery, you find out that the firm (which is a limited company) has gone bust. You probably won't get a penny back from the receiver because 'preferred creditors' (like the tax man) get 'first bite' at any money which is left in the company. You might know that the (former) boss of the company lives just up the road from you, in a massive mansion with a fleet of Rolls-Royces and a private jet. When you knock on his door and ask for your money back he can simply (truthfully) say "I don't owe you a penny".
Chris Foster was in a similar position to my fictitious businessman. He