Somebody I know well is coming to the end of her rental contract and she feels the landlord may ask for an unaffordable increase. I am not completely sure of all the benefits this person receives, but they currently rent a house, are on FIS, a single mum and she also works. I know that the benefits she receives pays most/all of her rent of probably in the region of 1000 per month plus whatever other benefits she gets. I have space where I could rent a room to this lady and another room for the child. What does that mean for me? Do I have to be a registered landlord? Am I still able to avail of the rent a room tax benefit? Will she be able to make the same benefit claims for the rent? And bills? (Assuming she gets some form of benefit there) The house is not set up with all the regulation stuff such as zoned heating etc. So will not reach certain regs. Anything else I should be aware of?