As stated we would not be living as spouses as all paperwork, rental agreement and bills etc would be in his name solely and that I would only be “staying in one “of the bedrooms. The mortgage would be changed to a rental rate. I am aware that the best option is to rent out both properties and move into a new property either renting or buying and then claim all the benefits of two properties being rented but we are trying to avoid moving etc. So it’s more a question of is this legal in the eyes of the tax man as at this stage I would be renting the property to another person it’s just that I may also reside there.