Friday 3 January 2014 9.45pm
It's a long a rocky road and best to get as many of the leaseholders involved as possible, but you may need the Property Chamber which is where these matters are ruled on.
Here's an "QUANGO" that can give advice for free, though tends to be a bit non-committal.
My one piece of advice is, don't start unless you really think you've got what it takes to see it through! It's more energy, time and stamina than money so get plenty of people to work together.
Best of luck.