Please, check our white paper once more. Firstly, we are talking not about connission, but about the price of the deal, different thigs. Secondly, we take cases when you rent and lease something at the same time. For example, you're leasing a house in USA and have a trip to UK at the same time, where you're renting a house. In this particular case you'll have to pay two commissions to sharing service and will pay taxes for yurself and for the second party. And, of course, will pay some extra money to the bank for dollar-pound conversion. And know you can count how much money you will have to pay in total =)