For the buyer, there are obvious disadvantages under the sub-agency. There is no obligation to obtain the best price or conditions for the buyer, since the broker, as a sub-agent, was required to obtain the best conditions for the seller, usually someone he had never met and with whom there was no direct business relationship. Many states, including Florida and Colorado, have abolished the sub-agency in favor of written buyback brokerage agreements or the creation of brokerage transactions. In practice, there may of course be difficulties in convincing a head of line that the sub-agents thus designated by the Plenipotentiary-General actually act as representatives of the contracting authority. A similar case was heard in Canada in 1986 concerning the bankruptcy of a general agent.