Ken was the legal owner of Pink Cottage, title to which had already been registered by the previous owner. He paid for the cottage with his own savings and with a contribution from his parents Ruth and Allan. An express trust was drawn up confirming that his parents had an equitable interest in one-half of the property.

Ken agreed to allow his neighbour, Sasha, to park her car from time to time in a garage in Ken's garden.

Ken rented one of the rooms in the cottage on August 14, 2023, to Gloria, but the lease was not to commence for one month.

Ken promised his neighbour, Midge, that the property would not be used for anything other than residential purposes.

On September 1, 2023, Ken sold the cottage to Barbie who wishes to run a business from home. Ken's parents, who sometimes stayed at the cottage at weekends, were on holiday in Mauritius at the time of the sale to Barbie.

Advise the various parties as to their rights.