https://www.citizensadvice.org.uk/cymraeg/Tai/lodging-and-subletting/lodging-subletting/landlords-of-lodgers/taking-in-a-lodger-what-you-need-to-think-about-first/
Cael lletywr - Cyngor ar Bopeth
What to think about before taking in a lodger and becoming a resident landlord.
caelcyngorar