As Commish, what should I Do?

[Lofunzo]

Well I feel before every trade goes through every owner involved in the trade should have the right to cancel the trade for any reason, so if the player wants to cancel the trade, veto it right away or you will have one very dissatisfied owner

I disagree completely. You can reject a deal by not accepting it in the first place. Once you accept it, it passes unless it is vetoed. If someone has trade remorse, that is not an acceptable reason to reverse a trade.