I am suggesting that a right of first refusal etc was incorporated into any agreement with LR as a result of negotiation rather than that they felt entitled to

I am suggesting that a right of first refusal etc was incorporated into any agreement with LR as a result of negotiation rather than that they felt entitled to it. Clearly if they were retained to perform services with a specific scope which they subsequently complied with and got paid for, they should not be complaining that the client then did not use their work subsequently. This again assumes their was some form of assignment in place.