New leases system allows leasing over the limit
I moved up to AA+ so my limit became 100 million. I decided to see what would happen if I put in an order for more aircraft than I was allowed, and it let me place that order even though it put me something like 18 million over the limit for AA+. When I went into the order page again and tried to place another large aircraft order, the game showed me an error message saying this would take me over the limit. It seems that it lets you place any order you want as long as you are under the limit at that moment, and does not check whether the order you are placing will take you over it?