Whether you can be held personally responsible for the broker's fee depends upon whether:1) Contracting for a broker's fee was within the normal scope of your business--which seems to be the case--which would normally preclude liability (acting outside of authority or against authority can lead to liability); then, though, need to look at:2) Was agreeing to pay the fee negligent in some fashion--that is, unreasonably careless, in that you didn't make sure you were getting value or dealing with a reputable broker or making sure you were paying a fee commensurate with what the company was getting for the fee3) Was there evidence of some sort of improper collusion--e.g. paying an undeserved fee to get something back personally from the brokerIf the company was not getting value back for this transaction and it was not normally the procedure to give a broker a lucrative commission for little work in expection of future work or business, then if it can be shown that you were negligent or intentionally acting improperly, they might have grounds to hold you personally liable for the fee. If on the other hand, what you did was in keeping with normal procedures and past practice (and you can show that), they probably won't be able to successfully hold you responsible for the fee.