from personal experience, my wife and I are currently 'at the mercy' of a landlord 25 miles from our home who is demanding a 5 figure sum to extend our lease on our flat. This figure is equivilent to a deposit on a new home even though we 'own' our flat so is almost like paying for it again with no benefit to us and it is preventing our family life from moving on.
the way a leasehold traps people by short leases detering potential buyers of a leasehold property and influencing obtaining a mortgage together with a unfair extension of leasehold process is unfair and affecting peoples lives. I suspect there are families across the UK in the same situation being held to ransom by unfair lease extension costs.