Blake, the tenant at 35 Tarorri Road, Chippendale, has come into the office and has told you that he has a friend coming out from England to stay with him for a period of 5 months. He is two months into a six-month lease. He has told you that because he is having difficulty paying the rent as he has had his overtime cut, the friend from England has offered to pay a weekly amount to Blake for the time he is staying at the property. Blake has asked you how he could formalise this arrangement in writing