I'd like to volunteer
Below is a rough idea of how trade voting is done in another league that I am in and well it's worked well since league inception.
A single post from each voter containing their vote and reasoning for that vote. Commissioners may post announcements when deemed necessary. If the trade unfairly favors the posting team, vote positively (+.) If the trade unfairly favors the confirming team, vote negatively (-.) All votes must include a grade from -100 to +100, using this scale as a guideline:
+/- 0-10: Completely even trade, or a problem-free trade that may slightly favor either side in the opinion of the voter.
+/- 10-25: One side does maintain a substantial advantage in the deal, but in the opinion of the voter the trade should not come under question as veto-worthy or close to it.
+/- 25-39: The advantage obtained by one side is potentially dangerous and may hurt the other side if similar deals are made in the future. It is not deemed vetoable by the voter but might be by other voters.
+/- 40-49: The trade is definitely dangerous and the voter maintains that veto consideration should be given, however it is not veto-worthy in the eyes of the voter.
+/- 50-69: The trade is considered vetoable by the voter, but perhaps certain aspects of the deal make sense. Perhaps the losing team will be able to recover from their error.
+/- 70-89: The trade makes little sense for one side from various aspects i.e. talent, financials, current/future direction. The trade should definitely not be allowed and poses a real threat to the league.
+/- 90-99: The trade is among the worst trades conceivable. No sound arguments can be made in its favor, in the eyes of the voter.
+/- 100: The worst trade conceivable, i.e. Starlin Castro ($400,000) for John Lackey ($15,000,000.)
If after 48 hours there have been at least 5 votes, and the average grade has an absolute value of 50 or above, the trade will be vetoed. If all of the first five, or five of the first six votes fall inside {-25...+25}, the trade will be automatically processed even if the 48-hour period is not up. Owners will not vote on their own trades.
TRADE REVIEW GUIDELINES:
* In your reasoning, you may not personally attack an owner, or even make blatantly disparaging remarks about an involved player, such as "Varitek is garbage/sucks/pathetic, etc."
* Contacting voters via email, PM or otherwise concerning their vote is prohibited.
* Changing of votes is discouraged. Within the casting of the first five votes, a voter may change his vote up to FIVE points (+/-) OR to fall within +/- 25, as long as they give good reason. After the fifth vote is cast, changing votes is no longer allowed. Think it through before posting.
* One post per trader or voter per thread, so there will be no arguing back and forth. Make your point, and let the process work itself out.
* What you are voting on is not whether or not one team is getting the better end in your opinion, but whether the trade threatens the integrity or longevity of the league, or might be a part of a pattern to do so. Take into account past, current, or changing markets, former costs, and team direction(s) at your discretion.
* Player production now, in the future, salaries, cap space situations, contract lengths, and arbitration clocks are all factors that should be weighed in various degrees while making your review.
* When weighing the fair value of a draft pick, an estimation of the player available at that draft pick should be used.