I have a cousin with quite severe mental health difficulties, who has quite a lor of support from social services, friends and family. He is living in very poor conditions at the moment, owns his house and lives on benefits. He also has a substantial amount of money in the bank. I have just taken on a property as a landlord and I am considering offering it to him. It's not in his area but is immaculate. I run my properties as an additional source of income and need the rent money as my work patterns are erratic and my DD is also unemployed at the moment. My question is: if he accepts my offer should I charge him rent?