I'm not going to pretend to know who's right or how this will play out legally, but Twitter's lawyers did participate in the creation of the agreement and therefore the current state of affairs.
But on the topic, I think I'm getting down voted as an emotional reaction. I clearly said I don't want to pretend to know if he's legally right or not, a position which if most of us are being honest we should all be taking. But people aren't taking that position and they're reacting emotionally to words they don't want to hear. All I've said in the above comment was that Twitters lawyers did indeed contribute to the current state of affairs when they participated in the creation of the agreement in question. This is true by definition.
I mean, yeah, twitter's lawyers were definitely involved in drafting up the contract between twitter and elon, but that doesn't really have any bearing on elon regretting signing that contract which mandates his closing the deal -- sucks to be him