I own a property with another party who lives abroad. Due to a high mortgage, we have an agreement that we have a tenant. One of my neighbors who is on the Board of management keeps demanding to know who is living with me. This person lives in very close proximity to me. It's very awkward. Surely, it is no-one's business who I have staying with me? I have come in with friends/family and this person has demanded to know what is going on. This person isn't the type of person you could reason with.