Guide to taking in a Lodger   What is a Lodger?   A Lodger is a person who rents a room in your home without having exclusive rights to any part of the property. Usually there is a formal arrangement in place that sets out the rooms that the Lodger can use and those that they share with the rest of the household (e.g. the kitchen, living room and bathroom) for an agreed payment.   Close family members such as a parent, step parent or parent-in-law, a son or daughter