My grandmother lives in a house for the best part of 50 years. The deeds of the house are registered to the parish council as part of the church. In the earlier years she paid rent, however she has not paid any rent to the church for over 20 years. since she originally inhabited the house, she and the family have paid for all of the financial upkeep of the house. there has never been any upkeep or intervention by the parish or the church. she has never had a rent book, or given any receipts for any rent paid. what is her legal situation here? is she the rightful owner? what does she need to do to legalise it?