<prompt> Human: What is the most fair way to split rent for a 6 bedroom house split between 7 people 2 people share a room not master?  <response>: I have a community house that has 7 bedrooms. I dont charge rent, I charge a monthly membership fee per person over 16. Sometimes this creates extra money that then goes into a fund that is backup for when we are actively looking for new roomates.That way everyone knows what they have to pay every month. If two people shack up together they are both still paying their fair share. People take a toll on a house even if they are sharing a sleeping space. We also have membership levels to determine seniority in the house decisions. When one person wants another room the decision is made by a voting board who hopefully have the best interest of the community in mind. 