... but if after that point he can obtain Freeholding Lord Status he's got the protection of the Accords and the Warlock's he's teaching as part of his retinue being 'nobles of his court' also gain that protection.
Okay, I'm at a lost here.
What protections did being a signatory to the Accords offer the Red Court when the White Council committed an act of war against it? Yes, it offered alternatives to war:
1) the White Council could have turned over the criminal for judgement - it did not.
2) a duel of champions could have occurred - but when it was tried the White Court champion's ally shot at the Red Court Champion with a rifle, negating the duel.
In the face of that, what choice did the Red Court have but to fight?
The Accords allow for peaceful interactions between rival nations and give the conditions for honourable war - but once that war is declared you have a gas attack that wipes out everyone in several blocks. You can have satellites used for orbital bombardment In short, if the White Council wanted to go to War with the Warlock then what protections would the Accords give him?
But that's the default setting. If you want to change things up - say include the Accord Peacekeepers who make and enforce the peace - then go for it.
And if you'd like inspiration for that - there's a series of novels (Night Watch, Day Watch, etc) where you have the forces of Light and the forces of Darkness in a peace treaty. Both sides acknowledge that if they start a war now the World would be destroyed and both side want to wait until they're in a position to win (while stopping the other side from getting there). They have a formal treaty that spells out everything and it's partly enforced by a neutral agency (one made up of both Light and Dark) - and everything is tit for tat. And the Good Guys in that series - my god does the White Council have it easy by comparison. As in who needs wardens when the average Good Guy will go: "Hey - I was about to do a spell that could have killed someone. What kind of monster am I? I don't deserve to live".
They are great series of novels and really capture the feel of that kind of setting.
Richard