Re: Wigan
No way would an enforced sale be wanted by the FA purely as they would inherit any liabilities. What could maybe work in that situation is a forced administration and a rule that any current or previous directors of that company are not allowed to buy it. What would be nice but unworkable is that the club automatically passes to a company owned by all existing STH's.
Your idea of a way to stop the spiralling losses does need to be found at some point.